f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171

Analysis

max time kernel
115s
max time network
18s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-09-2024 16:55

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General

Target

f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
Size

2.3MB
MD5

3acf0f8250e73855a38a3391f6839300
SHA1

303df2cf9b94808dae96640115b9fa55c30f9637
SHA256

f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171
SHA512

8b70668c1bbb0d624836f50a3d61c951eeae4376ef99b410731f8b3d7debf29340caa6aa4260b81b220a97943311238e233eaf204cb4052c9e9106bf48bb576e
SSDEEP

49152:3jvk2d9rJpNJ6jUFdXaDoIHmXMupzh72lxakn2YpHdy4ZBgIoooNe:3rkI9rSjA5aDo73pzF2bz3p9y4HgIoov

Score

7^/10

discovery persistence

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0009000000016cfe-11.dat	acprotect

Executes dropped EXE 2 IoCs

pid	Process
2108	ctfmen.exe
1968	smnss.exe

Loads dropped DLL 9 IoCs

pid	Process
2696	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
2696	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
2696	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
2108	ctfmen.exe
2108	ctfmen.exe
1968	smnss.exe
2668	WerFault.exe
2668	WerFault.exe
2668	WerFault.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ctfmen = "C:\\Windows\\system32\\ctfmen.exe"	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ctfmen = "C:\\Windows\\system32\\ctfmen.exe"	smnss.exe

Maps connected drives based on registry 3 TTPs 6 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\1	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	smnss.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	smnss.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\1	smnss.exe

Drops file in System32 directory 12 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\smnss.exe	smnss.exe
File opened for modification	C:\Windows\SysWOW64\ctfmen.exe	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
File opened for modification	C:\Windows\SysWOW64\grcopy.dll	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
File created	C:\Windows\SysWOW64\smnss.exe	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
File created	C:\Windows\SysWOW64\satornas.dll	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
File opened for modification	C:\Windows\SysWOW64\satornas.dll	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
File created	C:\Windows\SysWOW64\zipfiaq.dll	smnss.exe
File created	C:\Windows\SysWOW64\ctfmen.exe	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
File created	C:\Windows\SysWOW64\shervans.dll	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
File created	C:\Windows\SysWOW64\grcopy.dll	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
File opened for modification	C:\Windows\SysWOW64\shervans.dll	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
File created	C:\Windows\SysWOW64\zipfi.dll	smnss.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
2696	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
2696	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
1968	smnss.exe
1968	smnss.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\7-Zip\Lang\mr.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\Stationery\Peacock.htm	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\symbols.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\ipscat.xml	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\es.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\it.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ro.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\sa.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\readme.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\zh-tw.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\oskmenu.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\ipskor.xml	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\fa.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\gl.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\hy.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\sr-spc.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\uk.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\pa-in.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\keypad\kor-kor.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\Stationery\Roses.htm	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\hu.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\base_ca.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\ipsnor.xml	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\bg.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ru.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\uz.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ta.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\Content.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\keypad\ea.xml	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\an.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ast.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\az.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\he.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ko.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\oskmenu\oskmenubase.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\ipsptg.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\osknumpad\osknumpadbase.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\Stationery\Stars.htm	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\cs.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ga.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\kab.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\pt.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\base_rtl.xml	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\eu.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\lij.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ba.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\bn.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\tk.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\baseAltGr_rtl.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\numbers\numbase.xml	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\kk.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\th.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\ipsen.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\ipsita.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\Stationery\Soft Blue.htm	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\co.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\hi.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\auxpad.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\zh-changjei.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\ipssrb.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\ipsjpn.xml	smnss.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\THIRDPARTYLICENSEREADME-JAVAFX.txt	smnss.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\THIRDPARTYLICENSEREADME.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ar.txt	smnss.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2668	1968	WerFault.exe	31

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ctfmen.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	smnss.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32\ = "C:\\Windows\\SysWow64\\shervans.dll"	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32\ = "C:\\Windows\\SysWow64\\shervans.dll"	smnss.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1968	smnss.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2696	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
1968	smnss.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 2108	2696	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe	30
PID 2696 wrote to memory of 2108	2696	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe	30
PID 2696 wrote to memory of 2108	2696	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe	30
PID 2696 wrote to memory of 2108	2696	f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe	30
PID 2108 wrote to memory of 1968	2108	ctfmen.exe	31
PID 2108 wrote to memory of 1968	2108	ctfmen.exe	31
PID 2108 wrote to memory of 1968	2108	ctfmen.exe	31
PID 2108 wrote to memory of 1968	2108	ctfmen.exe	31
PID 1968 wrote to memory of 2668	1968	smnss.exe	33
PID 1968 wrote to memory of 2668	1968	smnss.exe	33
PID 1968 wrote to memory of 2668	1968	smnss.exe	33
PID 1968 wrote to memory of 2668	1968	smnss.exe	33

C:\Users\Admin\AppData\Local\Temp\f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe
"C:\Users\Admin\AppData\Local\Temp\f6c4e719a3d232fe70157ad15e5e19affcc65692e43296c83247fe9f3b1d5171N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2696
- C:\Windows\SysWOW64\ctfmen.exe
  ctfmen.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2108
- - C:\Windows\SysWOW64\smnss.exe
    C:\Windows\system32\smnss.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Adds Run key to start application
    - Maps connected drives based on registry
    - Drops file in System32 directory
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1968
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1968 -s 860
      4⤵
      Loads dropped DLL
      Program crash
      PID:2668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\satornas.dll

Filesize
183B

MD5
39e944572fe95f3d8b26bca453b94be7

SHA1
d26870fbd36edfacd610e65f7b444eb9c7215701

SHA256
aae0562fc5727318d97cf316a6bba84570a29a855e1e535bdc421c8e30c3a4c2

SHA512
3c3662350c173c2ea033e91b0abbef10508b31395da16449c1fd60e2f91639ec1ada9de99e025678d6203b4793266cad86bf6de06ac672e45216a9bfaddcf4f5

Download Submit
\Windows\SysWOW64\ctfmen.exe

Filesize
4KB

MD5
65b73cb7cafce815377a519c5d14aa6f

SHA1
e158656d634246495a7d26e14bbf1aa7b022add4

SHA256
54d7153c569a96319ec1f65e5e13e9867f43a9d75f7ccbad30aeaa097bc93309

SHA512
318fc33cb00f9640b192df0df5f57b067a040cfc82f65c9184a286508dc4628389e15c5a4dedf785c4d6fba4a3e45ebef7a8140348af5d7d50e26fb946d721e0

Download Submit
\Windows\SysWOW64\shervans.dll

Filesize
8KB

MD5
79e159a6ffc157e95c4260a7188819a2

SHA1
384d4c1dc2b886a2bfedfa63847c12396190e46b

SHA256
e76db9633130fb3813ad2deea107e9610b31f6dff013c19d0aa72dfabd92d3ad

SHA512
4640f0bbad8bf571c7492df89881031a6921670d265a7d8cd28b6235ef694944a6abc2dcfb0689e8483acdd653ef5401abecc8ce1bd6e26607a6f81eb49dbf67

Download Submit
\Windows\SysWOW64\smnss.exe

Filesize
2.3MB

MD5
8dd5855250176c6e9defdcfd87dc28c4

SHA1
08b1a6eb97a5f438bc703f232dd77d708866aae8

SHA256
26b16c108acc882b6160aee5c2c5682087c4863e3566ec9522aa8165a63ab5db

SHA512
7cfd32ee61f0617c6db9d73239e4eaf52d08c069fb58d29df75e0becb5b4974a3cbb9ebc59cf6b4db64f7363244fa4ce665fa0197977816921cb6a73807ed0fb

Download Submit
memory/1968-47-0x0000000000400000-0x0000000000DCE000-memory.dmp

Filesize
9.8MB

Download
memory/1968-45-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/1968-52-0x0000000000400000-0x0000000000DCE000-memory.dmp

Filesize
9.8MB

Download
memory/1968-53-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/1968-38-0x0000000000400000-0x0000000000DCE000-memory.dmp

Filesize
9.8MB

Download
memory/1968-51-0x000000007EBD0000-0x000000007EFA1000-memory.dmp

Filesize
3.8MB

Download
memory/1968-39-0x000000007EBD0000-0x000000007EFA1000-memory.dmp

Filesize
3.8MB

Download
memory/2108-29-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2108-36-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2696-24-0x0000000000170000-0x0000000000179000-memory.dmp

Filesize
36KB

Download
memory/2696-0-0x0000000000400000-0x0000000000DCE000-memory.dmp

Filesize
9.8MB

Download
memory/2696-2-0x000000007EBD0000-0x000000007EFA1000-memory.dmp

Filesize
3.8MB

Download
memory/2696-13-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/2696-30-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/2696-26-0x0000000000170000-0x0000000000179000-memory.dmp

Filesize
36KB

Download
memory/2696-31-0x0000000000400000-0x0000000000DCE000-memory.dmp

Filesize
9.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads