e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5

Analysis

max time kernel
79s
max time network
60s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-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
1380	coiome.exe

Stops running service(s) 3 TTPs
evasion

Modify Existing Service
T1031

Impair Defenses
T1562

Service Stop
T1489

Deletes itself 1 IoCs

pid	Process
1000	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
2032	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe
2032	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\coiome.exe	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe
File opened for modification	C:\Program Files (x86)\Common Files\sfbsbvx	coiome.exe
File opened for modification	C:\Program Files (x86)\Common Files\sfbsbvx	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe
File created	C:\Program Files (x86)\RMJ.hta	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe
File created	C:\Program Files (x86)\Common Files\sfbsbvx\coiome.exe	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe

Launches sc.exe 1 IoCs

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

pid	Process
1276	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
1836	taskkill.exe

Modifies Internet Explorer settings 1 TTPs 3 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\Search Page = "http://www.52cailing.com"	mshta.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\Start Page = "http://www.52cailing.com"	mshta.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2032	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe
Token: SeDebugPrivilege	1836	taskkill.exe
Token: SeDebugPrivilege	1380	coiome.exe

Suspicious use of WriteProcessMemory 56 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 1608	2032	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	28
PID 2032 wrote to memory of 1608	2032	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	28
PID 2032 wrote to memory of 1608	2032	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	28
PID 2032 wrote to memory of 1608	2032	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	28
PID 2032 wrote to memory of 760	2032	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	30
PID 2032 wrote to memory of 760	2032	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	30
PID 2032 wrote to memory of 760	2032	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	30
PID 2032 wrote to memory of 760	2032	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	30
PID 760 wrote to memory of 1836	760	cmd.exe	32
PID 760 wrote to memory of 1836	760	cmd.exe	32
PID 760 wrote to memory of 1836	760	cmd.exe	32
PID 760 wrote to memory of 1836	760	cmd.exe	32
PID 2032 wrote to memory of 1380	2032	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	34
PID 2032 wrote to memory of 1380	2032	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	34
PID 2032 wrote to memory of 1380	2032	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	34
PID 2032 wrote to memory of 1380	2032	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	34
PID 2032 wrote to memory of 1000	2032	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	35
PID 2032 wrote to memory of 1000	2032	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	35
PID 2032 wrote to memory of 1000	2032	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	35
PID 2032 wrote to memory of 1000	2032	e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe	35
PID 1380 wrote to memory of 976	1380	coiome.exe	38
PID 1380 wrote to memory of 976	1380	coiome.exe	38
PID 1380 wrote to memory of 976	1380	coiome.exe	38
PID 1380 wrote to memory of 976	1380	coiome.exe	38
PID 1380 wrote to memory of 1324	1380	coiome.exe	40
PID 1380 wrote to memory of 1324	1380	coiome.exe	40
PID 1380 wrote to memory of 1324	1380	coiome.exe	40
PID 1380 wrote to memory of 1324	1380	coiome.exe	40
PID 976 wrote to memory of 1276	976	cmd.exe	42
PID 976 wrote to memory of 1276	976	cmd.exe	42
PID 976 wrote to memory of 1276	976	cmd.exe	42
PID 976 wrote to memory of 1276	976	cmd.exe	42
PID 1324 wrote to memory of 1936	1324	cmd.exe	43
PID 1324 wrote to memory of 1936	1324	cmd.exe	43
PID 1324 wrote to memory of 1936	1324	cmd.exe	43
PID 1324 wrote to memory of 1936	1324	cmd.exe	43
PID 1380 wrote to memory of 1816	1380	coiome.exe	44
PID 1380 wrote to memory of 1816	1380	coiome.exe	44
PID 1380 wrote to memory of 1816	1380	coiome.exe	44
PID 1380 wrote to memory of 1816	1380	coiome.exe	44
PID 1816 wrote to memory of 1428	1816	cmd.exe	46
PID 1816 wrote to memory of 1428	1816	cmd.exe	46
PID 1816 wrote to memory of 1428	1816	cmd.exe	46
PID 1816 wrote to memory of 1428	1816	cmd.exe	46
PID 1380 wrote to memory of 1972	1380	coiome.exe	47
PID 1380 wrote to memory of 1972	1380	coiome.exe	47
PID 1380 wrote to memory of 1972	1380	coiome.exe	47
PID 1380 wrote to memory of 1972	1380	coiome.exe	47
PID 1380 wrote to memory of 1624	1380	coiome.exe	49
PID 1380 wrote to memory of 1624	1380	coiome.exe	49
PID 1380 wrote to memory of 1624	1380	coiome.exe	49
PID 1380 wrote to memory of 1624	1380	coiome.exe	49
PID 1380 wrote to memory of 1660	1380	coiome.exe	51
PID 1380 wrote to memory of 1660	1380	coiome.exe	51
PID 1380 wrote to memory of 1660	1380	coiome.exe	51
PID 1380 wrote to memory of 1660	1380	coiome.exe	51

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
1936	attrib.exe
1428	attrib.exe

C:\Users\Admin\AppData\Local\Temp\e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe
"C:\Users\Admin\AppData\Local\Temp\e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Windows\SysWOW64\mshta.exe
  "C:\Windows\SysWOW64\mshta.exe" "C:\Program Files (x86)\RMJ.hta"
  2⤵
  - Adds Run key to start application
  - Modifies Internet Explorer settings
  - Modifies Internet Explorer start page
  PID:1608
- C:\Windows\SysWOW64\cmd.exe
  cmd /c taskkill /im coiome.exe /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:760
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im coiome.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1836
- 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:1380
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c sc delete JavaServe
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:976
  - - C:\Windows\SysWOW64\sc.exe
      sc delete JavaServe
      4⤵
      Launches sc.exe
      PID:1276
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -h -s -r -a "%userprofile%\Cookies\*.*"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1324
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h -s -r -a "C:\Users\Admin\Cookies\*.*"
      4⤵
      Views/modifies file attributes
      PID:1936
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -h -s -r -a "%userprofile%\Local Settings\Temp\Cookies\*.*"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1816
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h -s -r -a "C:\Users\Admin\Local Settings\Temp\Cookies\*.*"
      4⤵
      Views/modifies file attributes
      PID:1428
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del /f /s /q "%userprofile%\Cookies\*.*
    3⤵
    PID:1972
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del /f /s /q "%userprofile%\Local Settings\Temporary Internet Files\*.*"
    3⤵
    PID:1624
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del /f /s /q "%userprofile%\Local Settings\Temp\Cookies\*.*"
    3⤵
    PID:1660
- C:\Windows\SysWOW64\cmd.exe
  cmd /c del "C:\Users\Admin\AppData\Local\Temp\e75f01f4d0babc54949de065c864d3997326506849bd0adad0491a23d6b6a8e5.exe"
  2⤵
  - Deletes itself
  PID:1000

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

T1489

Replay Monitor

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Downloads

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

Filesize
8.0MB

MD5
b31eb4be30026c5a0fab74d5d7b33673

SHA1
14cc9ed284bc2e68d820e08e63fca4af645d1dd8

SHA256
811b25d82b377bdf6aac994c2e7d529c32e663f4030d6c40018770abf5b84f11

SHA512
39258ae32d5215fb4c4583455088db2b0e016f8979e8ff68ee3247e046d6dbc46064182a18f7b62cad5612831f3f60bd1eae73707a85d05d58367f86829ce46b

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

Filesize
780B

MD5
cfae0efb683986503bb789616bad8b55

SHA1
9325f503e9c4d97a7d06d81859f73d245a974753

SHA256
8f1076023a3e05a05e9938b08398e885a516f7442a19cd0de7fd3a87f6c0ccd8

SHA512
e338c41006f670cc98554f1c3a262cc7e4d9dd680bd9d77cc2b5a048a7f3b630f59df6a02fe6542df71647ce3eb7541f86bc3266fad396a9859620a7d26a942c

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

Filesize
8.0MB

MD5
b31eb4be30026c5a0fab74d5d7b33673

SHA1
14cc9ed284bc2e68d820e08e63fca4af645d1dd8

SHA256
811b25d82b377bdf6aac994c2e7d529c32e663f4030d6c40018770abf5b84f11

SHA512
39258ae32d5215fb4c4583455088db2b0e016f8979e8ff68ee3247e046d6dbc46064182a18f7b62cad5612831f3f60bd1eae73707a85d05d58367f86829ce46b

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

Filesize
8.0MB

MD5
b31eb4be30026c5a0fab74d5d7b33673

SHA1
14cc9ed284bc2e68d820e08e63fca4af645d1dd8

SHA256
811b25d82b377bdf6aac994c2e7d529c32e663f4030d6c40018770abf5b84f11

SHA512
39258ae32d5215fb4c4583455088db2b0e016f8979e8ff68ee3247e046d6dbc46064182a18f7b62cad5612831f3f60bd1eae73707a85d05d58367f86829ce46b

Download Submit
memory/1380-67-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1380-69-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2032-57-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2032-65-0x0000000000230000-0x000000000023E000-memory.dmp

Filesize
56KB

Download
memory/2032-54-0x0000000076261000-0x0000000076263000-memory.dmp

Filesize
8KB

Download
memory/2032-66-0x0000000000230000-0x000000000023E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads