8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580

Analysis

max time kernel
51s
max time network
48s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
03/12/2022, 01:05

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe
Size

17KB
MD5

c23017a6c3787bde2923bdee1dc1390a
SHA1

3ddcd4eacbe4c6e3f11a3c9db80da9d7d976d229
SHA256

8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580
SHA512

f218cec5f0675b95657c8cf8b51347a9ee24650fdf040fd80b09abbe276274aad49973fe88aa6599465e85aba25f7af0ecffbc846ca59426336a51d84cb1894f
SSDEEP

384:wGxN21KGYz0iwV1vF32zjydJw96uBgyaNJawcudoD7UoxV:NY1KG8vwV5tWjUJtuBcnbcuyD7Uoj

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1264	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
1964	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
1720	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe
1720	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.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	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe
File created	C:\Program Files (x86)\WXE.hta	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe
File created	C:\Program Files (x86)\Common Files\sfbsbvx\coiome.exe	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe
File opened for modification	C:\Program Files (x86)\Common Files\sfbsbvx\coiome.exe	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.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
1812	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
396	taskkill.exe

Modifies Internet Explorer settings 1 TTPs 3 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\Search Page = "http://www.52cailing.com"	mshta.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\Start Page = "http://www.52cailing.com"	mshta.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1720	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe
Token: SeDebugPrivilege	396	taskkill.exe
Token: SeDebugPrivilege	1264	coiome.exe

Suspicious use of WriteProcessMemory 56 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 1356	1720	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe	27
PID 1720 wrote to memory of 1356	1720	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe	27
PID 1720 wrote to memory of 1356	1720	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe	27
PID 1720 wrote to memory of 1356	1720	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe	27
PID 1720 wrote to memory of 660	1720	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe	29
PID 1720 wrote to memory of 660	1720	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe	29
PID 1720 wrote to memory of 660	1720	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe	29
PID 1720 wrote to memory of 660	1720	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe	29
PID 660 wrote to memory of 396	660	cmd.exe	31
PID 660 wrote to memory of 396	660	cmd.exe	31
PID 660 wrote to memory of 396	660	cmd.exe	31
PID 660 wrote to memory of 396	660	cmd.exe	31
PID 1720 wrote to memory of 1264	1720	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe	33
PID 1720 wrote to memory of 1264	1720	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe	33
PID 1720 wrote to memory of 1264	1720	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe	33
PID 1720 wrote to memory of 1264	1720	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe	33
PID 1720 wrote to memory of 1964	1720	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe	34
PID 1720 wrote to memory of 1964	1720	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe	34
PID 1720 wrote to memory of 1964	1720	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe	34
PID 1720 wrote to memory of 1964	1720	8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe	34
PID 1264 wrote to memory of 1244	1264	coiome.exe	37
PID 1264 wrote to memory of 1244	1264	coiome.exe	37
PID 1264 wrote to memory of 1244	1264	coiome.exe	37
PID 1264 wrote to memory of 1244	1264	coiome.exe	37
PID 1244 wrote to memory of 1812	1244	cmd.exe	39
PID 1244 wrote to memory of 1812	1244	cmd.exe	39
PID 1244 wrote to memory of 1812	1244	cmd.exe	39
PID 1244 wrote to memory of 1812	1244	cmd.exe	39
PID 1264 wrote to memory of 1580	1264	coiome.exe	40
PID 1264 wrote to memory of 1580	1264	coiome.exe	40
PID 1264 wrote to memory of 1580	1264	coiome.exe	40
PID 1264 wrote to memory of 1580	1264	coiome.exe	40
PID 1580 wrote to memory of 1724	1580	cmd.exe	42
PID 1580 wrote to memory of 1724	1580	cmd.exe	42
PID 1580 wrote to memory of 1724	1580	cmd.exe	42
PID 1580 wrote to memory of 1724	1580	cmd.exe	42
PID 1264 wrote to memory of 1440	1264	coiome.exe	43
PID 1264 wrote to memory of 1440	1264	coiome.exe	43
PID 1264 wrote to memory of 1440	1264	coiome.exe	43
PID 1264 wrote to memory of 1440	1264	coiome.exe	43
PID 1440 wrote to memory of 912	1440	cmd.exe	45
PID 1440 wrote to memory of 912	1440	cmd.exe	45
PID 1440 wrote to memory of 912	1440	cmd.exe	45
PID 1440 wrote to memory of 912	1440	cmd.exe	45
PID 1264 wrote to memory of 1160	1264	coiome.exe	46
PID 1264 wrote to memory of 1160	1264	coiome.exe	46
PID 1264 wrote to memory of 1160	1264	coiome.exe	46
PID 1264 wrote to memory of 1160	1264	coiome.exe	46
PID 1264 wrote to memory of 544	1264	coiome.exe	48
PID 1264 wrote to memory of 544	1264	coiome.exe	48
PID 1264 wrote to memory of 544	1264	coiome.exe	48
PID 1264 wrote to memory of 544	1264	coiome.exe	48
PID 1264 wrote to memory of 1516	1264	coiome.exe	50
PID 1264 wrote to memory of 1516	1264	coiome.exe	50
PID 1264 wrote to memory of 1516	1264	coiome.exe	50
PID 1264 wrote to memory of 1516	1264	coiome.exe	50

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
1724	attrib.exe
912	attrib.exe

C:\Users\Admin\AppData\Local\Temp\8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe
"C:\Users\Admin\AppData\Local\Temp\8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Windows\SysWOW64\mshta.exe
  "C:\Windows\SysWOW64\mshta.exe" "C:\Program Files (x86)\WXE.hta"
  2⤵
  - Adds Run key to start application
  - Modifies Internet Explorer settings
  - Modifies Internet Explorer start page
  PID:1356
- C:\Windows\SysWOW64\cmd.exe
  cmd /c taskkill /im coiome.exe /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:660
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im coiome.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:396
- 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:1264
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c sc delete JavaServe
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1244
  - - C:\Windows\SysWOW64\sc.exe
      sc delete JavaServe
      4⤵
      Launches sc.exe
      PID:1812
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -h -s -r -a "%userprofile%\Cookies\*.*"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1580
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h -s -r -a "C:\Users\Admin\Cookies\*.*"
      4⤵
      Views/modifies file attributes
      PID:1724
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -h -s -r -a "%userprofile%\Local Settings\Temp\Cookies\*.*"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1440
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h -s -r -a "C:\Users\Admin\Local Settings\Temp\Cookies\*.*"
      4⤵
      Views/modifies file attributes
      PID:912
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del /f /s /q "%userprofile%\Cookies\*.*
    3⤵
    PID:1160
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del /f /s /q "%userprofile%\Local Settings\Temporary Internet Files\*.*"
    3⤵
    PID:544
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del /f /s /q "%userprofile%\Local Settings\Temp\Cookies\*.*"
    3⤵
    PID:1516
- C:\Windows\SysWOW64\cmd.exe
  cmd /c del "C:\Users\Admin\AppData\Local\Temp\8a86c7361a46fc005c83129a520810d30195deb4f0692f1ed6a0caa3c5d48580.exe"
  2⤵
  - Deletes itself
  PID:1964

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

Loading Replay Monitor...

Downloads

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

Filesize
2.0MB

MD5
7bc6ad33e5e8c45bd659095385a78087

SHA1
aebd3381495b54595045b8ab80696d98d26ce35d

SHA256
a64c7439a765bfcafee3f2711c68d811f2373fb4549dcaf9267f75e18ad475cb

SHA512
c896bc56d7dcbccfffdff08c8b4bec3a4cbf992f0207e16b374331d364ac7c7bdaa8217d89cbfcc4e071ed375da3c28e9c22dae9d367a322b9b289b92987913a

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

Filesize
780B

MD5
cfae0efb683986503bb789616bad8b55

SHA1
9325f503e9c4d97a7d06d81859f73d245a974753

SHA256
8f1076023a3e05a05e9938b08398e885a516f7442a19cd0de7fd3a87f6c0ccd8

SHA512
e338c41006f670cc98554f1c3a262cc7e4d9dd680bd9d77cc2b5a048a7f3b630f59df6a02fe6542df71647ce3eb7541f86bc3266fad396a9859620a7d26a942c

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

Filesize
2.0MB

MD5
7bc6ad33e5e8c45bd659095385a78087

SHA1
aebd3381495b54595045b8ab80696d98d26ce35d

SHA256
a64c7439a765bfcafee3f2711c68d811f2373fb4549dcaf9267f75e18ad475cb

SHA512
c896bc56d7dcbccfffdff08c8b4bec3a4cbf992f0207e16b374331d364ac7c7bdaa8217d89cbfcc4e071ed375da3c28e9c22dae9d367a322b9b289b92987913a

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

Filesize
2.0MB

MD5
7bc6ad33e5e8c45bd659095385a78087

SHA1
aebd3381495b54595045b8ab80696d98d26ce35d

SHA256
a64c7439a765bfcafee3f2711c68d811f2373fb4549dcaf9267f75e18ad475cb

SHA512
c896bc56d7dcbccfffdff08c8b4bec3a4cbf992f0207e16b374331d364ac7c7bdaa8217d89cbfcc4e071ed375da3c28e9c22dae9d367a322b9b289b92987913a

Download Submit
memory/1264-67-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1264-69-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1720-66-0x00000000003C0000-0x00000000003CF000-memory.dmp

Filesize
60KB

Download
memory/1720-54-0x00000000765B1000-0x00000000765B3000-memory.dmp

Filesize
8KB

Download
memory/1720-65-0x00000000003C0000-0x00000000003CF000-memory.dmp

Filesize
60KB

Download
memory/1720-57-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads