3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5

Analysis

max time kernel
88s
max time network
81s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
06/11/2022, 13:40

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General

Target

3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe
Size

68KB
MD5

14884e9e7367632ecab21056d0c7eda7
SHA1

9a9049dde7f8e604b2f8db7eccb1e6144b519e78
SHA256

3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5
SHA512

4ad34d2f05f0227ab21066eb9dc99bfa620ccf70fa945c49c7f787ee377b5208d5a68cf3f3032ae13c42528d1ff290834a1d0b7978e323e4c0366c0c8b9a2f3c
SSDEEP

768:RrpeUKbGP2fSy1A+pGmLZ8veIouYFvDEKqOt5bKP9nbcuyD7Utn:RMqy1AGGmLZ8GI3YpqOt5bsnouy8tn

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1828	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
1780	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
1012	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe
1012	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.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\\sebsbvx\\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\sebsbvx	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe
File created	C:\Program Files (x86)\XSX.hta	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe
File created	C:\Program Files (x86)\Common Files\sebsbvx\coiome.exe	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe
File opened for modification	C:\Program Files (x86)\Common Files\sebsbvx\coiome.exe	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe
File opened for modification	C:\Program Files (x86)\Common Files\sebsbvx	coiome.exe

Launches sc.exe 1 IoCs

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

pid	Process
1672	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
776	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	1012	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe
Token: SeDebugPrivilege	776	taskkill.exe
Token: SeDebugPrivilege	1828	coiome.exe

Suspicious use of WriteProcessMemory 56 IoCs

description	pid	Process	procid_target
PID 1012 wrote to memory of 1708	1012	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe	28
PID 1012 wrote to memory of 1708	1012	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe	28
PID 1012 wrote to memory of 1708	1012	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe	28
PID 1012 wrote to memory of 1708	1012	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe	28
PID 1012 wrote to memory of 1784	1012	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe	30
PID 1012 wrote to memory of 1784	1012	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe	30
PID 1012 wrote to memory of 1784	1012	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe	30
PID 1012 wrote to memory of 1784	1012	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe	30
PID 1784 wrote to memory of 776	1784	cmd.exe	32
PID 1784 wrote to memory of 776	1784	cmd.exe	32
PID 1784 wrote to memory of 776	1784	cmd.exe	32
PID 1784 wrote to memory of 776	1784	cmd.exe	32
PID 1012 wrote to memory of 1828	1012	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe	34
PID 1012 wrote to memory of 1828	1012	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe	34
PID 1012 wrote to memory of 1828	1012	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe	34
PID 1012 wrote to memory of 1828	1012	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe	34
PID 1012 wrote to memory of 1780	1012	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe	35
PID 1012 wrote to memory of 1780	1012	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe	35
PID 1012 wrote to memory of 1780	1012	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe	35
PID 1012 wrote to memory of 1780	1012	3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe	35
PID 1828 wrote to memory of 1648	1828	coiome.exe	38
PID 1828 wrote to memory of 1648	1828	coiome.exe	38
PID 1828 wrote to memory of 1648	1828	coiome.exe	38
PID 1828 wrote to memory of 1648	1828	coiome.exe	38
PID 1648 wrote to memory of 1672	1648	cmd.exe	40
PID 1648 wrote to memory of 1672	1648	cmd.exe	40
PID 1648 wrote to memory of 1672	1648	cmd.exe	40
PID 1648 wrote to memory of 1672	1648	cmd.exe	40
PID 1828 wrote to memory of 916	1828	coiome.exe	41
PID 1828 wrote to memory of 916	1828	coiome.exe	41
PID 1828 wrote to memory of 916	1828	coiome.exe	41
PID 1828 wrote to memory of 916	1828	coiome.exe	41
PID 1828 wrote to memory of 2000	1828	coiome.exe	43
PID 1828 wrote to memory of 2000	1828	coiome.exe	43
PID 1828 wrote to memory of 2000	1828	coiome.exe	43
PID 1828 wrote to memory of 2000	1828	coiome.exe	43
PID 916 wrote to memory of 1608	916	cmd.exe	46
PID 916 wrote to memory of 1608	916	cmd.exe	46
PID 916 wrote to memory of 1608	916	cmd.exe	46
PID 916 wrote to memory of 1608	916	cmd.exe	46
PID 2000 wrote to memory of 1584	2000	cmd.exe	45
PID 2000 wrote to memory of 1584	2000	cmd.exe	45
PID 2000 wrote to memory of 1584	2000	cmd.exe	45
PID 2000 wrote to memory of 1584	2000	cmd.exe	45
PID 1828 wrote to memory of 2012	1828	coiome.exe	47
PID 1828 wrote to memory of 2012	1828	coiome.exe	47
PID 1828 wrote to memory of 2012	1828	coiome.exe	47
PID 1828 wrote to memory of 2012	1828	coiome.exe	47
PID 1828 wrote to memory of 1772	1828	coiome.exe	49
PID 1828 wrote to memory of 1772	1828	coiome.exe	49
PID 1828 wrote to memory of 1772	1828	coiome.exe	49
PID 1828 wrote to memory of 1772	1828	coiome.exe	49
PID 1828 wrote to memory of 1952	1828	coiome.exe	51
PID 1828 wrote to memory of 1952	1828	coiome.exe	51
PID 1828 wrote to memory of 1952	1828	coiome.exe	51
PID 1828 wrote to memory of 1952	1828	coiome.exe	51

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
1584	attrib.exe
1608	attrib.exe

C:\Users\Admin\AppData\Local\Temp\3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe
"C:\Users\Admin\AppData\Local\Temp\3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1012
- C:\Windows\SysWOW64\mshta.exe
  "C:\Windows\SysWOW64\mshta.exe" "C:\Program Files (x86)\XSX.hta"
  2⤵
  - Adds Run key to start application
  - Modifies Internet Explorer settings
  - Modifies Internet Explorer start page
  PID:1708
- C:\Windows\SysWOW64\cmd.exe
  cmd /c taskkill /im coiome.exe /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1784
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im coiome.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:776
- C:\Program Files (x86)\Common Files\sebsbvx\coiome.exe
  "C:\Program Files (x86)\Common Files\sebsbvx\coiome.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1828
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c sc delete JavaServe
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1648
  - - C:\Windows\SysWOW64\sc.exe
      sc delete JavaServe
      4⤵
      Launches sc.exe
      PID:1672
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -h -s -r -a "%userprofile%\Cookies\*.*"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:916
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h -s -r -a "C:\Users\Admin\Cookies\*.*"
      4⤵
      Views/modifies file attributes
      PID:1608
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -h -s -r -a "%userprofile%\Local Settings\Temp\Cookies\*.*"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2000
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h -s -r -a "C:\Users\Admin\Local Settings\Temp\Cookies\*.*"
      4⤵
      Views/modifies file attributes
      PID:1584
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del /f /s /q "%userprofile%\Cookies\*.*
    3⤵
    PID:2012
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del /f /s /q "%userprofile%\Local Settings\Temporary Internet Files\*.*"
    3⤵
    PID:1772
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del /f /s /q "%userprofile%\Local Settings\Temp\Cookies\*.*"
    3⤵
    PID:1952
- C:\Windows\SysWOW64\cmd.exe
  cmd /c del "C:\Users\Admin\AppData\Local\Temp\3fc2ae50cdcac490a95d55ac2462423945d765fbddbdbface31c45584070fdb5.exe"
  2⤵
  - Deletes itself
  PID:1780

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

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Downloads

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

Filesize
12.1MB

MD5
06cd831d45fe403ac4b184205435236f

SHA1
c562429ac498c60c335bd51325f3d841a10676f4

SHA256
642082957fd28a64b6e3465885194a1d9ca2801c8c64af4de59487547ccf0a34

SHA512
ac9785e7386b4538e854c98c7a9b4aaec5f58fb53a4641be5e32bde06976706e4d32fb61e2af54212cbda4910ff3ed3a1951e5e637fd4b252dabd76f641f5de2

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

Filesize
780B

MD5
123760c0b2b15cca0448e52b2b7f9f48

SHA1
e0d1004b3878b6c420b1c01f4953089c92921b20

SHA256
4244569e7c8cd1d29b0e6a467b73b397c75cdbf607de60e101da0963a363a615

SHA512
9aeb90f1cbf901da10bf75cc64177c1ecbd23fdfc9884caee442409bf34ebd6605c3dc6269b68490b7151554cb580a5e64c33a4ecdf42a5b146741fef022b9d1

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

Filesize
12.1MB

MD5
06cd831d45fe403ac4b184205435236f

SHA1
c562429ac498c60c335bd51325f3d841a10676f4

SHA256
642082957fd28a64b6e3465885194a1d9ca2801c8c64af4de59487547ccf0a34

SHA512
ac9785e7386b4538e854c98c7a9b4aaec5f58fb53a4641be5e32bde06976706e4d32fb61e2af54212cbda4910ff3ed3a1951e5e637fd4b252dabd76f641f5de2

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

Filesize
12.1MB

MD5
06cd831d45fe403ac4b184205435236f

SHA1
c562429ac498c60c335bd51325f3d841a10676f4

SHA256
642082957fd28a64b6e3465885194a1d9ca2801c8c64af4de59487547ccf0a34

SHA512
ac9785e7386b4538e854c98c7a9b4aaec5f58fb53a4641be5e32bde06976706e4d32fb61e2af54212cbda4910ff3ed3a1951e5e637fd4b252dabd76f641f5de2

Download Submit
memory/1012-61-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/1012-67-0x0000000000280000-0x0000000000293000-memory.dmp

Filesize
76KB

Download
memory/1012-68-0x0000000000280000-0x0000000000293000-memory.dmp

Filesize
76KB

Download
memory/1012-54-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/1012-55-0x00000000763F1000-0x00000000763F3000-memory.dmp

Filesize
8KB

Download
memory/1828-71-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/1828-69-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads