e278a239f0871de08f812a0f31626ae470dbfb3250fbcf19d7ba128a7765d24d

Analysis

max time kernel
94s
max time network
100s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05/09/2024, 03:39

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General

Target

2d698498e586bca2a5c028d9993eab50N.exe
Size

2.3MB
MD5

2d698498e586bca2a5c028d9993eab50
SHA1

49a0cffec59f12787b331d1f77d6e45d478bc529
SHA256

e278a239f0871de08f812a0f31626ae470dbfb3250fbcf19d7ba128a7765d24d
SHA512

b7b3a1d5989674f6f649542ee2e859ff91c9b7fb6301ec7f6dd18b206eb5c0cb7c1edf8f7a1d7a6af93046d3964584be08fa636a195d30f661e4f5443904454c
SSDEEP

49152:Gjvk2d9rJpNJ6jUFdXaDoIHmXMupzh72lxakn2YpHdy4ZBgIoooNe:GrkI9rSjA5aDo73pzF2bz3p9y4HgIoov

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
behavioral2/files/0x00070000000234b1-11.dat	acprotect

Executes dropped EXE 2 IoCs

pid	Process
3044	ctfmen.exe
4068	smnss.exe

Loads dropped DLL 2 IoCs

pid	Process
5060	2d698498e586bca2a5c028d9993eab50N.exe
4068	smnss.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"	smnss.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ctfmen = "C:\\Windows\\system32\\ctfmen.exe"	2d698498e586bca2a5c028d9993eab50N.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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	2d698498e586bca2a5c028d9993eab50N.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	2d698498e586bca2a5c028d9993eab50N.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\1	2d698498e586bca2a5c028d9993eab50N.exe

Drops file in System32 directory 12 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\grcopy.dll	2d698498e586bca2a5c028d9993eab50N.exe
File opened for modification	C:\Windows\SysWOW64\shervans.dll	2d698498e586bca2a5c028d9993eab50N.exe
File created	C:\Windows\SysWOW64\zipfi.dll	smnss.exe
File created	C:\Windows\SysWOW64\zipfiaq.dll	smnss.exe
File created	C:\Windows\SysWOW64\ctfmen.exe	2d698498e586bca2a5c028d9993eab50N.exe
File opened for modification	C:\Windows\SysWOW64\ctfmen.exe	2d698498e586bca2a5c028d9993eab50N.exe
File created	C:\Windows\SysWOW64\shervans.dll	2d698498e586bca2a5c028d9993eab50N.exe
File opened for modification	C:\Windows\SysWOW64\grcopy.dll	2d698498e586bca2a5c028d9993eab50N.exe
File created	C:\Windows\SysWOW64\smnss.exe	2d698498e586bca2a5c028d9993eab50N.exe
File created	C:\Windows\SysWOW64\satornas.dll	2d698498e586bca2a5c028d9993eab50N.exe
File opened for modification	C:\Windows\SysWOW64\satornas.dll	2d698498e586bca2a5c028d9993eab50N.exe
File created	C:\Windows\SysWOW64\smnss.exe	smnss.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs

pid	Process
5060	2d698498e586bca2a5c028d9993eab50N.exe
5060	2d698498e586bca2a5c028d9993eab50N.exe
4068	smnss.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\auxpad\auxbase.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskpred\oskpredbase.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\ipscsy.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\ipsrus.xml	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\eo.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\mk.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\tg.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\Alphabet.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\ipsnld.xml	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\de.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\kaa.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\sq.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\uk.txt	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\Common Files\microsoft shared\ink\ipsar.xml	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\br.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ja.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\lt.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\mng2.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\tt.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\vi.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\ipsel.xml	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\gl.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\pt-br.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\osknumpad.xml	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\et.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\uz.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\ipsfin.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\ipstr.xml	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\ne.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\ipshrv.xml	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ga.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskclearui.xml	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ug.txt	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\fsdefinitions\oskmenu.xml	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\hi.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\nl.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\License.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\osknav.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\Common Files\microsoft shared\ink\ipsdan.xml	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\be.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\da.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\History.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\ms.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\Lang\th.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\symbols\symbase.xml	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\ky.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\mr.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\pl.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\ipsdeu.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\ipsrom.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\ka.txt	smnss.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
764	4068	WerFault.exe	92

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	2d698498e586bca2a5c028d9993eab50N.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	2d698498e586bca2a5c028d9993eab50N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	2d698498e586bca2a5c028d9993eab50N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}	2d698498e586bca2a5c028d9993eab50N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32\ = "C:\\Windows\\SysWow64\\shervans.dll"	2d698498e586bca2a5c028d9993eab50N.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	2d698498e586bca2a5c028d9993eab50N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4068	smnss.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5060	2d698498e586bca2a5c028d9993eab50N.exe
4068	smnss.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5060 wrote to memory of 3044	5060	2d698498e586bca2a5c028d9993eab50N.exe	91
PID 5060 wrote to memory of 3044	5060	2d698498e586bca2a5c028d9993eab50N.exe	91
PID 5060 wrote to memory of 3044	5060	2d698498e586bca2a5c028d9993eab50N.exe	91
PID 3044 wrote to memory of 4068	3044	ctfmen.exe	92
PID 3044 wrote to memory of 4068	3044	ctfmen.exe	92
PID 3044 wrote to memory of 4068	3044	ctfmen.exe	92

C:\Users\Admin\AppData\Local\Temp\2d698498e586bca2a5c028d9993eab50N.exe
"C:\Users\Admin\AppData\Local\Temp\2d698498e586bca2a5c028d9993eab50N.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:5060
- C:\Windows\SysWOW64\ctfmen.exe
  ctfmen.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3044
- - 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
    PID:4068
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4068 -s 1496
      4⤵
      Program crash
      PID:764

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4068 -ip 4068
1⤵
PID:3948

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\ctfmen.exe

Filesize
4KB

MD5
e10217bf66a676450da12c00d26b0fa9

SHA1
234a0ec86b85f013dc9cafecc54975be8862e986

SHA256
15be2710257c5e4140392d5c5a1c1945b8eb9737a9b0d0c55a189f38668929b5

SHA512
34652fbcd40b9a83c46690bc1dbbc853387e96090650d30f9b589d8e93e4643fe0b349a54233624397d4999f5aaa79dee78b206f85d4c76f47969b18d80f13e1

Download Submit
C:\Windows\SysWOW64\grcopy.dll

Filesize
2.3MB

MD5
a889098b10f8383c63ce9f9668c23210

SHA1
fc9723241ffed6a636ac30a0d182914618fa1b93

SHA256
f95d2695c61669b189618c28ecc282223bc7f5b2f6fe19bb3ceec62c98e1e73b

SHA512
f52eada4a769de9db990b86acbd946062ab1976d68819c353b06f422e2df1be94a3a3d4013600dc0f0208ece06c376fd14c140d97195b696df57376c50432e8e

Download Submit
C:\Windows\SysWOW64\satornas.dll

Filesize
183B

MD5
24344e05c615530ba7e4dc1dc1f41caa

SHA1
eaf641e45d35aaae86bf58bb68001e92a9d9b15d

SHA256
cbc7a6571438a1ef27bb131f49af0aaa3a41af4b331a128e954a0b5e4e43670b

SHA512
c9c7db9fa77f2dde7fe127ab7f101a93956ffce2963e222fc5f2532d84c381f78b57cb39a7a7545196db6808cfd4689e1ac3bb1d8ad63458bb32bfcdc2203cbb

Download Submit
C:\Windows\SysWOW64\shervans.dll

Filesize
8KB

MD5
aa90fee6a916dcff814e77d4d0f01a0a

SHA1
926841b386e40c6057b7f0a63c860535ff7166e5

SHA256
afddba6ce35c8c59e2702c3208a0f4674095bcae656a42e3ea9a3f80a11add81

SHA512
ccb4963056664e7c2c9427cd6d040d977085ae290bc17c5f2241ab08a8b1f83df0f4d7b6b7d0be95112362d54887cb3046a3afe9e4fb944d4f4a386698033383

Download Submit
memory/3044-23-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3044-29-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4068-34-0x000000007FA70000-0x000000007FE41000-memory.dmp

Filesize
3.8MB

Download
memory/4068-33-0x0000000000400000-0x0000000000DCE000-memory.dmp

Filesize
9.8MB

Download
memory/4068-40-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/4068-42-0x0000000000400000-0x0000000000DCE000-memory.dmp

Filesize
9.8MB

Download
memory/4068-43-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/4068-44-0x000000007FA70000-0x000000007FE41000-memory.dmp

Filesize
3.8MB

Download
memory/5060-27-0x0000000000400000-0x0000000000DCE000-memory.dmp

Filesize
9.8MB

Download
memory/5060-30-0x000000007FA70000-0x000000007FE41000-memory.dmp

Filesize
3.8MB

Download
memory/5060-14-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/5060-25-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/5060-0-0x0000000000400000-0x0000000000DCE000-memory.dmp

Filesize
9.8MB

Download
memory/5060-1-0x000000007FA70000-0x000000007FE41000-memory.dmp

Filesize
3.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads