ab79436e9124e23de074759ba688af1faa920f984451b24d73fe55552e636e05

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11-03-2024 09:02

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

c031b1ba9e85008952c1f01828a21d02.exe
Size

17KB
MD5

c031b1ba9e85008952c1f01828a21d02
SHA1

a3664031a624acdeb71063092e9339197cbac192
SHA256

ab79436e9124e23de074759ba688af1faa920f984451b24d73fe55552e636e05
SHA512

6d808bb608cf89f4dbfb140705024d3a249ac535a87628464f146d84545f01ed36b4eb73e1ff2e48a7a712e3601fc003436d8ca60336cb1aa26bb8f9cee33f10
SSDEEP

384:h5kAsWojnwgtfgXUMn3QtXP/U1SQuwWaNJawcudoD7U8xt:cWoDVYXUDXP82QnbcuyD7U8D

Score

8^/10

evasion persistence

Malware Config

Signatures

Stops running service(s) 3 TTPs
evasion

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	c031b1ba9e85008952c1f01828a21d02.exe

Executes dropped EXE 1 IoCs

pid	Process
2948	coiome.exe

Adds Run key to start application 2 TTPs 1 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\safe360 = "C:\\Program Files\\Common Files\\sfbsbvx\\coiome.exe"	mshta.exe

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\sfbsbvx	coiome.exe
File opened for modification	C:\Program Files (x86)\Common Files\sfbsbvx	c031b1ba9e85008952c1f01828a21d02.exe
File created	C:\Program Files (x86)\CFC.hta	c031b1ba9e85008952c1f01828a21d02.exe
File created	C:\Program Files (x86)\Common Files\sfbsbvx\coiome.exe	c031b1ba9e85008952c1f01828a21d02.exe
File opened for modification	C:\Program Files (x86)\Common Files\sfbsbvx\coiome.exe	c031b1ba9e85008952c1f01828a21d02.exe

Launches sc.exe 1 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2520	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
2360	taskkill.exe

Modifies Internet Explorer settings 1 TTPs 3 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Search Page = "http://www.52cailing.com"	mshta.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Main\default_page_url = "http://www.52cailing.com"	mshta.exe

Modifies Internet Explorer start page 1 TTPs 1 IoCs

stealer

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Start Page = "http://www.52cailing.com"	mshta.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000_Classes\Local Settings	c031b1ba9e85008952c1f01828a21d02.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	880	c031b1ba9e85008952c1f01828a21d02.exe
Token: SeDebugPrivilege	2360	taskkill.exe
Token: SeDebugPrivilege	2948	coiome.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 880 wrote to memory of 1564	880	c031b1ba9e85008952c1f01828a21d02.exe	93
PID 880 wrote to memory of 1564	880	c031b1ba9e85008952c1f01828a21d02.exe	93
PID 880 wrote to memory of 1564	880	c031b1ba9e85008952c1f01828a21d02.exe	93
PID 880 wrote to memory of 3140	880	c031b1ba9e85008952c1f01828a21d02.exe	94
PID 880 wrote to memory of 3140	880	c031b1ba9e85008952c1f01828a21d02.exe	94
PID 880 wrote to memory of 3140	880	c031b1ba9e85008952c1f01828a21d02.exe	94
PID 3140 wrote to memory of 2360	3140	cmd.exe	96
PID 3140 wrote to memory of 2360	3140	cmd.exe	96
PID 3140 wrote to memory of 2360	3140	cmd.exe	96
PID 880 wrote to memory of 2948	880	c031b1ba9e85008952c1f01828a21d02.exe	105
PID 880 wrote to memory of 2948	880	c031b1ba9e85008952c1f01828a21d02.exe	105
PID 880 wrote to memory of 2948	880	c031b1ba9e85008952c1f01828a21d02.exe	105
PID 880 wrote to memory of 5024	880	c031b1ba9e85008952c1f01828a21d02.exe	106
PID 880 wrote to memory of 5024	880	c031b1ba9e85008952c1f01828a21d02.exe	106
PID 880 wrote to memory of 5024	880	c031b1ba9e85008952c1f01828a21d02.exe	106
PID 2948 wrote to memory of 4424	2948	coiome.exe	109
PID 2948 wrote to memory of 4424	2948	coiome.exe	109
PID 2948 wrote to memory of 4424	2948	coiome.exe	109
PID 4424 wrote to memory of 2520	4424	cmd.exe	111
PID 4424 wrote to memory of 2520	4424	cmd.exe	111
PID 4424 wrote to memory of 2520	4424	cmd.exe	111
PID 2948 wrote to memory of 4312	2948	coiome.exe	113
PID 2948 wrote to memory of 4312	2948	coiome.exe	113
PID 2948 wrote to memory of 4312	2948	coiome.exe	113
PID 4312 wrote to memory of 2296	4312	cmd.exe	115
PID 4312 wrote to memory of 2296	4312	cmd.exe	115
PID 4312 wrote to memory of 2296	4312	cmd.exe	115
PID 2948 wrote to memory of 4200	2948	coiome.exe	116
PID 2948 wrote to memory of 4200	2948	coiome.exe	116
PID 2948 wrote to memory of 4200	2948	coiome.exe	116
PID 4200 wrote to memory of 4772	4200	cmd.exe	118
PID 4200 wrote to memory of 4772	4200	cmd.exe	118
PID 4200 wrote to memory of 4772	4200	cmd.exe	118
PID 2948 wrote to memory of 520	2948	coiome.exe	119
PID 2948 wrote to memory of 520	2948	coiome.exe	119
PID 2948 wrote to memory of 520	2948	coiome.exe	119
PID 2948 wrote to memory of 2188	2948	coiome.exe	121
PID 2948 wrote to memory of 2188	2948	coiome.exe	121
PID 2948 wrote to memory of 2188	2948	coiome.exe	121
PID 2948 wrote to memory of 3852	2948	coiome.exe	123
PID 2948 wrote to memory of 3852	2948	coiome.exe	123
PID 2948 wrote to memory of 3852	2948	coiome.exe	123

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2296	attrib.exe
4772	attrib.exe

C:\Users\Admin\AppData\Local\Temp\c031b1ba9e85008952c1f01828a21d02.exe
"C:\Users\Admin\AppData\Local\Temp\c031b1ba9e85008952c1f01828a21d02.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:880
- C:\Windows\SysWOW64\mshta.exe
  "C:\Windows\SysWOW64\mshta.exe" "C:\Program Files (x86)\CFC.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
  2⤵
  - Adds Run key to start application
  - Modifies Internet Explorer settings
  - Modifies Internet Explorer start page
  PID:1564
- C:\Windows\SysWOW64\cmd.exe
  cmd /c taskkill /im coiome.exe /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3140
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im coiome.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2360
- C:\Program Files (x86)\Common Files\sfbsbvx\coiome.exe
  "C:\Program Files (x86)\Common Files\sfbsbvx\coiome.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2948
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c sc delete JavaServe
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4424
  - - C:\Windows\SysWOW64\sc.exe
      sc delete JavaServe
      4⤵
      Launches sc.exe
      PID:2520
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -h -s -r -a "%userprofile%\Cookies\*.*"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4312
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h -s -r -a "C:\Users\Admin\Cookies\*.*"
      4⤵
      Views/modifies file attributes
      PID:2296
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -h -s -r -a "%userprofile%\Local Settings\Temp\Cookies\*.*"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4200
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h -s -r -a "C:\Users\Admin\Local Settings\Temp\Cookies\*.*"
      4⤵
      Views/modifies file attributes
      PID:4772
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del /f /s /q "%userprofile%\Cookies\*.*
    3⤵
    PID:520
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del /f /s /q "%userprofile%\Local Settings\Temporary Internet Files\*.*"
    3⤵
    PID:2188
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del /f /s /q "%userprofile%\Local Settings\Temp\Cookies\*.*"
    3⤵
    PID:3852
- C:\Windows\SysWOW64\cmd.exe
  cmd /c del "C:\Users\Admin\AppData\Local\Temp\c031b1ba9e85008952c1f01828a21d02.exe"
  2⤵
  PID:5024

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Impair Defenses

T1562

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

T1489

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files (x86)\CFC.hta

Filesize
780B

MD5
cfae0efb683986503bb789616bad8b55

SHA1
9325f503e9c4d97a7d06d81859f73d245a974753

SHA256
8f1076023a3e05a05e9938b08398e885a516f7442a19cd0de7fd3a87f6c0ccd8

SHA512
e338c41006f670cc98554f1c3a262cc7e4d9dd680bd9d77cc2b5a048a7f3b630f59df6a02fe6542df71647ce3eb7541f86bc3266fad396a9859620a7d26a942c

Download Submit
C:\Program Files (x86)\Common Files\sfbsbvx\coiome.exe

Filesize
2.0MB

MD5
f0b07aa9c8bc0ca910372221f141d70d

SHA1
64e2d4aaf0e9189ef4cfd38c22d94b94d49fdd68

SHA256
d662838e62fffe66f9de328f325d123aa2286d33a9d6f3d6ddb89f3870d2723c

SHA512
ba52746ec44b210c43af11c73c24f9d64696021480683e4718ca1254582ee8e9ac095de56cc66f2f6d579eb8d2d2c943d0dc0779314c976cbb3688f07ac7fe7d

Download Submit
memory/880-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/880-5-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2948-11-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2948-13-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads