5706b1ee8808f71f8b11878c5c29670ae179c242c675725abc933b5463acb62d

Analysis

max time kernel
117s
max time network
25s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
27-07-2024 21:32

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General

Target

03c0395eb89532cbf5bdc125875e22d0N.exe
Size

352KB
MD5

03c0395eb89532cbf5bdc125875e22d0
SHA1

f9201487605aa74a388ead9ca77ef81b8d2d6562
SHA256

5706b1ee8808f71f8b11878c5c29670ae179c242c675725abc933b5463acb62d
SHA512

15ca4519f663311fa33ccac5ae7d0404769022ab7a691c2ef17af7312575343392b5659579dc992cbc39d119f3d4e48734c227c79e97635db78d488d552eac91
SSDEEP

6144:SIs9OKofHfHTXQLzgvnzHPowYbvrjD/L7QPbg/Dr0T3rnXLHf7zjPFsEPAsKCe8i:/KofHfHTXQLzgvnzHPowYbvrjD/L7QPs

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/0x0008000000018f6e-10.dat	acprotect

Executes dropped EXE 2 IoCs

pid	Process
2836	ctfmen.exe
2760	smnss.exe

Loads dropped DLL 9 IoCs

pid	Process
2452	03c0395eb89532cbf5bdc125875e22d0N.exe
2452	03c0395eb89532cbf5bdc125875e22d0N.exe
2452	03c0395eb89532cbf5bdc125875e22d0N.exe
2836	ctfmen.exe
2836	ctfmen.exe
2760	smnss.exe
2340	WerFault.exe
2340	WerFault.exe
2340	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"	03c0395eb89532cbf5bdc125875e22d0N.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 value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\1	03c0395eb89532cbf5bdc125875e22d0N.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	03c0395eb89532cbf5bdc125875e22d0N.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	03c0395eb89532cbf5bdc125875e22d0N.exe

Drops file in System32 directory 12 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\zipfi.dll	smnss.exe
File created	C:\Windows\SysWOW64\zipfiaq.dll	smnss.exe
File opened for modification	C:\Windows\SysWOW64\ctfmen.exe	03c0395eb89532cbf5bdc125875e22d0N.exe
File created	C:\Windows\SysWOW64\grcopy.dll	03c0395eb89532cbf5bdc125875e22d0N.exe
File opened for modification	C:\Windows\SysWOW64\grcopy.dll	03c0395eb89532cbf5bdc125875e22d0N.exe
File opened for modification	C:\Windows\SysWOW64\shervans.dll	03c0395eb89532cbf5bdc125875e22d0N.exe
File created	C:\Windows\SysWOW64\smnss.exe	03c0395eb89532cbf5bdc125875e22d0N.exe
File created	C:\Windows\SysWOW64\satornas.dll	03c0395eb89532cbf5bdc125875e22d0N.exe
File opened for modification	C:\Windows\SysWOW64\satornas.dll	03c0395eb89532cbf5bdc125875e22d0N.exe
File created	C:\Windows\SysWOW64\smnss.exe	smnss.exe
File created	C:\Windows\SysWOW64\ctfmen.exe	03c0395eb89532cbf5bdc125875e22d0N.exe
File created	C:\Windows\SysWOW64\shervans.dll	03c0395eb89532cbf5bdc125875e22d0N.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\web.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\Common Files\Microsoft Shared\ink\ipsnor.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\fr.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\gu.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\is.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\base_jpn.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\ipschs.xml	smnss.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\db\README-JDK.html	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\af.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ar.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ru.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\fsdefinitions\osknumpad.xml	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\Google\Chrome\Application\chrome.VisualElementsManifest.xml	smnss.exe
File opened for modification	C:\Program Files\Internet Explorer\Timeline.cpu.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\kk.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\uz-cyrl.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\base_kor.xml	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\ne.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\nb.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\ipscsy.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\he.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\hr.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\hu.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\mng.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ca.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ext.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\ipssrb.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\Stationery\Orange Circles.htm	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\ipsplk.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\Common Files\Microsoft Shared\Stationery\Roses.htm	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\readme.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\fsdefinitions\keypad.xml	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\ipsesp.xml	smnss.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\server\Xusage.txt	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\fsdefinitions\symbols\symbase.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\mr.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\7-Zip\Lang\sk.txt	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\ipscat.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\Peacock.htm	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\ku.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\tg.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\zh-phonetic.xml	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\cs.txt	smnss.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2340	2760	WerFault.exe	30

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	03c0395eb89532cbf5bdc125875e22d0N.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}\InprocServer32	03c0395eb89532cbf5bdc125875e22d0N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	03c0395eb89532cbf5bdc125875e22d0N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	03c0395eb89532cbf5bdc125875e22d0N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}	03c0395eb89532cbf5bdc125875e22d0N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32\ = "C:\\Windows\\SysWow64\\shervans.dll"	03c0395eb89532cbf5bdc125875e22d0N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32\ = "C:\\Windows\\SysWow64\\shervans.dll"	smnss.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2760	smnss.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2452 wrote to memory of 2836	2452	03c0395eb89532cbf5bdc125875e22d0N.exe	29
PID 2452 wrote to memory of 2836	2452	03c0395eb89532cbf5bdc125875e22d0N.exe	29
PID 2452 wrote to memory of 2836	2452	03c0395eb89532cbf5bdc125875e22d0N.exe	29
PID 2452 wrote to memory of 2836	2452	03c0395eb89532cbf5bdc125875e22d0N.exe	29
PID 2836 wrote to memory of 2760	2836	ctfmen.exe	30
PID 2836 wrote to memory of 2760	2836	ctfmen.exe	30
PID 2836 wrote to memory of 2760	2836	ctfmen.exe	30
PID 2836 wrote to memory of 2760	2836	ctfmen.exe	30
PID 2760 wrote to memory of 2340	2760	smnss.exe	31
PID 2760 wrote to memory of 2340	2760	smnss.exe	31
PID 2760 wrote to memory of 2340	2760	smnss.exe	31
PID 2760 wrote to memory of 2340	2760	smnss.exe	31

C:\Users\Admin\AppData\Local\Temp\03c0395eb89532cbf5bdc125875e22d0N.exe
"C:\Users\Admin\AppData\Local\Temp\03c0395eb89532cbf5bdc125875e22d0N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2452
- 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:2836
- - 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
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2760
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2760 -s 828
      4⤵
      Loads dropped DLL
      Program crash
      PID:2340

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
815a3a261451f7b5c13ec8825eb7c05e

SHA1
214f043b5c5b7395c38ff98e19255ba757864037

SHA256
2422e287c502a8df3df96d5424d3f0b0c476c6d8a0f1268d32a10e85a9b7968c

SHA512
e530805aa1fc505c5f154a0ea2095e8bc354a7e6a752af0243ca54a4636f051275ccf407baa4700135836a03f3e52e4e4eacf875eceec7cfcc6f7332667e9127

Download Submit
C:\Windows\SysWOW64\smnss.exe

Filesize
352KB

MD5
8ef0925d013a435ce2c9ca7b6eb3dee3

SHA1
d6431d643b4281ff512b9af7bb1ee0496218e663

SHA256
46f8c77ed821dccf5a29152dbb838f9c4772b80666ad6d603ac8d8e965d82087

SHA512
3aeebba7666c5333429dff0d41513870f683e89be10033bbec14603707ce7d044df0e41f5a611426dbd01048f2badbf1064e170bc94f44cbcf90c78decce680a

Download Submit
\Windows\SysWOW64\ctfmen.exe

Filesize
4KB

MD5
51314c154c02df74c403c2e3faadef2e

SHA1
6d1bc039c49a08606a854d0ecce04a1cd7c43e5c

SHA256
d0ac124a28bd136650fe33410333702ea4353cc318b41429850ed7a9c00bc73b

SHA512
216d6d09f0780026de98c667bafe6971cadaa2c111d910950940c90b7d5b2b0948cfb57a91de4ba40cb9912fc39d873ce6ff0b71146fda37ee4f7f8d7f5e5a63

Download Submit
\Windows\SysWOW64\shervans.dll

Filesize
8KB

MD5
8bba6a61c62ec5a3992035400ff1e5bb

SHA1
d11fef5f08fb6bffb44c26b11278571192c98672

SHA256
c626f162a1eb9a023bc2be0ec3742a9cf501120909e4cf529d904d5a41e979e4

SHA512
5262448722502b43748d8ca200dcd18db12db826f0fd88413897e74707744207596b02d71845fecdd5461c12437036a7b9c57cf32a23cd8c93f91f3597ea836b

Download Submit
memory/2452-27-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2452-25-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/2452-0-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2452-19-0x0000000000330000-0x0000000000339000-memory.dmp

Filesize
36KB

Download
memory/2452-12-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/2760-35-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2760-42-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/2760-46-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/2760-49-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2836-26-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2836-34-0x0000000000320000-0x0000000000380000-memory.dmp

Filesize
384KB

Download
memory/2836-30-0x0000000000320000-0x0000000000380000-memory.dmp

Filesize
384KB

Download
memory/2836-48-0x0000000000320000-0x0000000000380000-memory.dmp

Filesize
384KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads