20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3

Analysis

max time kernel
53s
max time network
48s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
19-09-2022 00:59

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General

Target

20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe
Size

54KB
MD5

e244f6cdbcab13e32434cfcb888ce124
SHA1

1b38c2c603b2d0a93636d1f7ea8d3b7c7cc708c6
SHA256

20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3
SHA512

8de5caa965c1cd27fb9245dbb9869ee7fac8c3dee964c56304478feed5c2674369da5bd4bcaeb87882d1bc0db26981d4621ddbcef9d211931fa04fa2d27abfdf
SSDEEP

768:NrpGUKbGPhgSRA99jfeXZ8veIJCsS2+AvnbcuyD7UMo:NLbRATzeXZ8GIZScvnouy8Mo

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1848	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
1060	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
1720	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe
1720	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.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	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe
File created	C:\Program Files (x86)\TER.hta	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe
File created	C:\Program Files (x86)\Common Files\sfbsbvx\coiome.exe	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe
File opened for modification	C:\Program Files (x86)\Common Files\sfbsbvx\coiome.exe	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.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
1040	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
1548	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	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe
Token: SeDebugPrivilege	1548	taskkill.exe
Token: SeDebugPrivilege	1848	coiome.exe

Suspicious use of WriteProcessMemory 56 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 1356	1720	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe	27
PID 1720 wrote to memory of 1356	1720	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe	27
PID 1720 wrote to memory of 1356	1720	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe	27
PID 1720 wrote to memory of 1356	1720	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe	27
PID 1720 wrote to memory of 1940	1720	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe	29
PID 1720 wrote to memory of 1940	1720	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe	29
PID 1720 wrote to memory of 1940	1720	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe	29
PID 1720 wrote to memory of 1940	1720	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe	29
PID 1940 wrote to memory of 1548	1940	cmd.exe	31
PID 1940 wrote to memory of 1548	1940	cmd.exe	31
PID 1940 wrote to memory of 1548	1940	cmd.exe	31
PID 1940 wrote to memory of 1548	1940	cmd.exe	31
PID 1720 wrote to memory of 1848	1720	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe	33
PID 1720 wrote to memory of 1848	1720	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe	33
PID 1720 wrote to memory of 1848	1720	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe	33
PID 1720 wrote to memory of 1848	1720	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe	33
PID 1720 wrote to memory of 1060	1720	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe	34
PID 1720 wrote to memory of 1060	1720	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe	34
PID 1720 wrote to memory of 1060	1720	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe	34
PID 1720 wrote to memory of 1060	1720	20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe	34
PID 1848 wrote to memory of 1020	1848	coiome.exe	37
PID 1848 wrote to memory of 1020	1848	coiome.exe	37
PID 1848 wrote to memory of 1020	1848	coiome.exe	37
PID 1848 wrote to memory of 1020	1848	coiome.exe	37
PID 1020 wrote to memory of 1040	1020	cmd.exe	39
PID 1020 wrote to memory of 1040	1020	cmd.exe	39
PID 1020 wrote to memory of 1040	1020	cmd.exe	39
PID 1020 wrote to memory of 1040	1020	cmd.exe	39
PID 1848 wrote to memory of 1108	1848	coiome.exe	40
PID 1848 wrote to memory of 1108	1848	coiome.exe	40
PID 1848 wrote to memory of 1108	1848	coiome.exe	40
PID 1848 wrote to memory of 1108	1848	coiome.exe	40
PID 1108 wrote to memory of 584	1108	cmd.exe	42
PID 1108 wrote to memory of 584	1108	cmd.exe	42
PID 1108 wrote to memory of 584	1108	cmd.exe	42
PID 1108 wrote to memory of 584	1108	cmd.exe	42
PID 1848 wrote to memory of 1580	1848	coiome.exe	43
PID 1848 wrote to memory of 1580	1848	coiome.exe	43
PID 1848 wrote to memory of 1580	1848	coiome.exe	43
PID 1848 wrote to memory of 1580	1848	coiome.exe	43
PID 1580 wrote to memory of 1476	1580	cmd.exe	45
PID 1580 wrote to memory of 1476	1580	cmd.exe	45
PID 1580 wrote to memory of 1476	1580	cmd.exe	45
PID 1580 wrote to memory of 1476	1580	cmd.exe	45
PID 1848 wrote to memory of 1724	1848	coiome.exe	46
PID 1848 wrote to memory of 1724	1848	coiome.exe	46
PID 1848 wrote to memory of 1724	1848	coiome.exe	46
PID 1848 wrote to memory of 1724	1848	coiome.exe	46
PID 1848 wrote to memory of 912	1848	coiome.exe	48
PID 1848 wrote to memory of 912	1848	coiome.exe	48
PID 1848 wrote to memory of 912	1848	coiome.exe	48
PID 1848 wrote to memory of 912	1848	coiome.exe	48
PID 1848 wrote to memory of 1584	1848	coiome.exe	50
PID 1848 wrote to memory of 1584	1848	coiome.exe	50
PID 1848 wrote to memory of 1584	1848	coiome.exe	50
PID 1848 wrote to memory of 1584	1848	coiome.exe	50

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
584	attrib.exe
1476	attrib.exe

C:\Users\Admin\AppData\Local\Temp\20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe
"C:\Users\Admin\AppData\Local\Temp\20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.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)\TER.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:1940
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im coiome.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1548
- 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:1848
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c sc delete JavaServe
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1020
  - - C:\Windows\SysWOW64\sc.exe
      sc delete JavaServe
      4⤵
      Launches sc.exe
      PID:1040
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -h -s -r -a "%userprofile%\Cookies\*.*"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1108
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h -s -r -a "C:\Users\Admin\Cookies\*.*"
      4⤵
      Views/modifies file attributes
      PID:584
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -h -s -r -a "%userprofile%\Local Settings\Temp\Cookies\*.*"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1580
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h -s -r -a "C:\Users\Admin\Local Settings\Temp\Cookies\*.*"
      4⤵
      Views/modifies file attributes
      PID:1476
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del /f /s /q "%userprofile%\Cookies\*.*
    3⤵
    PID:1724
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del /f /s /q "%userprofile%\Local Settings\Temporary Internet Files\*.*"
    3⤵
    PID:912
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c del /f /s /q "%userprofile%\Local Settings\Temp\Cookies\*.*"
    3⤵
    PID:1584
- C:\Windows\SysWOW64\cmd.exe
  cmd /c del "C:\Users\Admin\AppData\Local\Temp\20a7adf26b1d0cf65661cfbfa94dd2246f2fb34963ea689b83b4c32af2d810a3.exe"
  2⤵
  - Deletes itself
  PID:1060

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\sfbsbvx\coiome.exe

Filesize
12.1MB

MD5
9d4ae9dbc29a215782a6fbd09c467e64

SHA1
220af3e1f09c0a9499532708b2db3d9f7443faa9

SHA256
12c73eb4ce49c4d787e205d570456cf6bb592de6257cb06c6433ac7e2ebe3392

SHA512
df80768171a396832b5aeb8c00867b66a4eebf2755769b3711ba95fd8918e5ae52d3b97633897c0b66a932aa13d9223cd8cb108022f29df8c1ccb978da6ba3ac

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

Filesize
780B

MD5
cfae0efb683986503bb789616bad8b55

SHA1
9325f503e9c4d97a7d06d81859f73d245a974753

SHA256
8f1076023a3e05a05e9938b08398e885a516f7442a19cd0de7fd3a87f6c0ccd8

SHA512
e338c41006f670cc98554f1c3a262cc7e4d9dd680bd9d77cc2b5a048a7f3b630f59df6a02fe6542df71647ce3eb7541f86bc3266fad396a9859620a7d26a942c

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

Filesize
12.1MB

MD5
9d4ae9dbc29a215782a6fbd09c467e64

SHA1
220af3e1f09c0a9499532708b2db3d9f7443faa9

SHA256
12c73eb4ce49c4d787e205d570456cf6bb592de6257cb06c6433ac7e2ebe3392

SHA512
df80768171a396832b5aeb8c00867b66a4eebf2755769b3711ba95fd8918e5ae52d3b97633897c0b66a932aa13d9223cd8cb108022f29df8c1ccb978da6ba3ac

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

Filesize
12.1MB

MD5
9d4ae9dbc29a215782a6fbd09c467e64

SHA1
220af3e1f09c0a9499532708b2db3d9f7443faa9

SHA256
12c73eb4ce49c4d787e205d570456cf6bb592de6257cb06c6433ac7e2ebe3392

SHA512
df80768171a396832b5aeb8c00867b66a4eebf2755769b3711ba95fd8918e5ae52d3b97633897c0b66a932aa13d9223cd8cb108022f29df8c1ccb978da6ba3ac

Download Submit
memory/584-73-0x0000000000000000-mapping.dmp

Download
memory/912-77-0x0000000000000000-mapping.dmp

Download
memory/1020-70-0x0000000000000000-mapping.dmp

Download
memory/1040-71-0x0000000000000000-mapping.dmp

Download
memory/1060-68-0x0000000000000000-mapping.dmp

Download
memory/1108-72-0x0000000000000000-mapping.dmp

Download
memory/1356-55-0x0000000000000000-mapping.dmp

Download
memory/1476-75-0x0000000000000000-mapping.dmp

Download
memory/1548-59-0x0000000000000000-mapping.dmp

Download
memory/1580-74-0x0000000000000000-mapping.dmp

Download
memory/1584-78-0x0000000000000000-mapping.dmp

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

Filesize
60KB

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

Filesize
8KB

Download
memory/1720-65-0x0000000000270000-0x000000000027F000-memory.dmp

Filesize
60KB

Download
memory/1720-66-0x0000000000270000-0x000000000027F000-memory.dmp

Filesize
60KB

Download
memory/1724-76-0x0000000000000000-mapping.dmp

Download
memory/1848-69-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1848-62-0x0000000000000000-mapping.dmp

Download
memory/1848-67-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1940-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads