e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5

Analysis

max time kernel
153s
max time network
178s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
02/12/2022, 22:53

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General

Target

e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe
Size

6.0MB
MD5

fd4db948be621f87de27f230c3169101
SHA1

b1bb461b69897da482978e696040c074b3691680
SHA256

e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5
SHA512

dac0fa6e594b980217f4bfd138b652fed4cc6da07135ae5847f77948ad4446633ae7fb279464e6d281c2395ea4e76d8ec26d7c204e599e181c4a2de6bc699375
SSDEEP

384:swGx6sLtvVTdvI269d/61zJ4AZ9uFVPSaNJawcudoD7UwQu:S6gtldvIbj61zJzIznbcuyD7Uwz

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3068	coiome.exe

Stops running service(s) 3 TTPs
evasion

Modify Existing Service
T1031

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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	mshta.exe
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	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe
File created	C:\Program Files (x86)\IHC.hta	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe
File created	C:\Program Files (x86)\Common Files\sfbsbvx\coiome.exe	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe
File opened for modification	C:\Program Files (x86)\Common Files\sfbsbvx\coiome.exe	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe
File opened for modification	C:\Program Files (x86)\Common Files\sfbsbvx	coiome.exe

Launches sc.exe 1 IoCs

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

pid	Process
368	sc.exe

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

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
5092	taskkill.exe

Modifies Internet Explorer settings 1 TTPs 3 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\default_page_url = "http://www.52cailing.com"	mshta.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Search Page = "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-1-5-21-2295526160-1155304984-640977766-1000\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-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4140	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe
Token: SeDebugPrivilege	5092	taskkill.exe
Token: SeDebugPrivilege	3068	coiome.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 4140 wrote to memory of 3236	4140	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	79
PID 4140 wrote to memory of 3236	4140	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	79
PID 4140 wrote to memory of 3236	4140	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	79
PID 4140 wrote to memory of 3396	4140	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	80
PID 4140 wrote to memory of 3396	4140	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	80
PID 4140 wrote to memory of 3396	4140	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	80
PID 3396 wrote to memory of 5092	3396	cmd.exe	82
PID 3396 wrote to memory of 5092	3396	cmd.exe	82
PID 3396 wrote to memory of 5092	3396	cmd.exe	82
PID 4140 wrote to memory of 3068	4140	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	85
PID 4140 wrote to memory of 3068	4140	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	85
PID 4140 wrote to memory of 3068	4140	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	85
PID 4140 wrote to memory of 3372	4140	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	86
PID 4140 wrote to memory of 3372	4140	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	86
PID 4140 wrote to memory of 3372	4140	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	86
PID 3068 wrote to memory of 212	3068	coiome.exe	89
PID 3068 wrote to memory of 212	3068	coiome.exe	89
PID 3068 wrote to memory of 212	3068	coiome.exe	89
PID 212 wrote to memory of 368	212	cmd.exe	91
PID 212 wrote to memory of 368	212	cmd.exe	91
PID 212 wrote to memory of 368	212	cmd.exe	91
PID 3068 wrote to memory of 3904	3068	coiome.exe	92
PID 3068 wrote to memory of 3904	3068	coiome.exe	92
PID 3068 wrote to memory of 3904	3068	coiome.exe	92
PID 3904 wrote to memory of 3940	3904	cmd.exe	94
PID 3904 wrote to memory of 3940	3904	cmd.exe	94
PID 3904 wrote to memory of 3940	3904	cmd.exe	94
PID 3068 wrote to memory of 2360	3068	coiome.exe	95
PID 3068 wrote to memory of 2360	3068	coiome.exe	95
PID 3068 wrote to memory of 2360	3068	coiome.exe	95
PID 2360 wrote to memory of 1292	2360	cmd.exe	97
PID 2360 wrote to memory of 1292	2360	cmd.exe	97
PID 2360 wrote to memory of 1292	2360	cmd.exe	97
PID 3068 wrote to memory of 4328	3068	coiome.exe	98
PID 3068 wrote to memory of 4328	3068	coiome.exe	98
PID 3068 wrote to memory of 4328	3068	coiome.exe	98
PID 3068 wrote to memory of 4644	3068	coiome.exe	100
PID 3068 wrote to memory of 4644	3068	coiome.exe	100
PID 3068 wrote to memory of 4644	3068	coiome.exe	100
PID 3068 wrote to memory of 1784	3068	coiome.exe	102
PID 3068 wrote to memory of 1784	3068	coiome.exe	102
PID 3068 wrote to memory of 1784	3068	coiome.exe	102

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
1292	attrib.exe
3940	attrib.exe

C:\Users\Admin\AppData\Local\Temp\e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe
"C:\Users\Admin\AppData\Local\Temp\e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4140
- C:\Windows\SysWOW64\mshta.exe
  "C:\Windows\SysWOW64\mshta.exe" "C:\Program Files (x86)\IHC.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:3236
- C:\Windows\SysWOW64\cmd.exe
  cmd /c taskkill /im coiome.exe /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3396
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im coiome.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:5092
- 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:3068
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c sc delete JavaServe
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:212
  - - C:\Windows\SysWOW64\sc.exe
      sc delete JavaServe
      4⤵
      Launches sc.exe
      PID:368
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -h -s -r -a "%userprofile%\Cookies\*.*"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3904
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h -s -r -a "C:\Users\Admin\Cookies\*.*"
      4⤵
      Views/modifies file attributes
      PID:3940
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -h -s -r -a "%userprofile%\Local Settings\Temp\Cookies\*.*"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2360
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h -s -r -a "C:\Users\Admin\Local Settings\Temp\Cookies\*.*"
      4⤵
      Views/modifies file attributes
      PID:1292
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del /f /s /q "%userprofile%\Cookies\*.*
    3⤵
    PID:4328
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del /f /s /q "%userprofile%\Local Settings\Temporary Internet Files\*.*"
    3⤵
    PID:4644
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del /f /s /q "%userprofile%\Local Settings\Temp\Cookies\*.*"
    3⤵
    PID:1784
- C:\Windows\SysWOW64\cmd.exe
  cmd /c del "C:\Users\Admin\AppData\Local\Temp\e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe"
  2⤵
  PID:3372

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

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

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Downloads

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

Filesize
8.0MB

MD5
57b4b4477a8bb47d1ef6c603d8daa370

SHA1
6a100d6f3267f8f9b9eb678909a30885511b8220

SHA256
2bf4cb55cad42919aa665fc60620248058309c55ef06acf6603e6ed81411041c

SHA512
f1c8b17435222ddb14686c325395a361a1ea989edd44f76b8eafc5c9304f01ca2930d9b5bff859a66eea195d600eea2e58f8f1e2756e16365abe5e163cccc95c

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

Filesize
8.0MB

MD5
57b4b4477a8bb47d1ef6c603d8daa370

SHA1
6a100d6f3267f8f9b9eb678909a30885511b8220

SHA256
2bf4cb55cad42919aa665fc60620248058309c55ef06acf6603e6ed81411041c

SHA512
f1c8b17435222ddb14686c325395a361a1ea989edd44f76b8eafc5c9304f01ca2930d9b5bff859a66eea195d600eea2e58f8f1e2756e16365abe5e163cccc95c

Download Submit
C:\Program Files (x86)\IHC.hta

Filesize
780B

MD5
cfae0efb683986503bb789616bad8b55

SHA1
9325f503e9c4d97a7d06d81859f73d245a974753

SHA256
8f1076023a3e05a05e9938b08398e885a516f7442a19cd0de7fd3a87f6c0ccd8

SHA512
e338c41006f670cc98554f1c3a262cc7e4d9dd680bd9d77cc2b5a048a7f3b630f59df6a02fe6542df71647ce3eb7541f86bc3266fad396a9859620a7d26a942c

Download Submit
memory/3068-141-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3068-143-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4140-132-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4140-137-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads