8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143

Resubmissions

24-02-2022 11:14

220224-ncejnschd5 10

22-02-2022 08:33

220222-kfyj6sfggm 8

Analysis

max time kernel
153s
max time network
161s
platform
windows7_x64
resource
win7-en-20211208
submitted
22-02-2022 08:33

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General

Target

8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe
Size

267KB
MD5

ec3a003082a19fd6a00f84df315d18a2
SHA1

e7268a6982c3d17aaf472b331b67fbdbc4000dec
SHA256

8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143
SHA512

d3e804add5ebf3efdbf4794cbc1cc53bfc0485298771a1f43d7d683870f82561be3387d83436cf308e260bd600ce475998add0d094d63ab46f3dd75ad16f74aa

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

Mc.exeMc.exe

pid process

428 Mc.exe
336 Mc.exe
Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

808 svchost.exe

pid	process
428	Mc.exe
336	Mc.exe

Loads dropped DLL 7 IoCs

Processes:

8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exeMc.exeMc.exe

pid	process
1472	8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe
1472	8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe
1472	8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe
1472	8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe
1472	8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe
428	Mc.exe
336	Mc.exe

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

System Information Discovery
T1082
Modifies data under HKEY_USERS 1 IoCs

Processes:

svchost.exe

description ioc process

Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad svchost.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	svchost.exe

Modifies registry class 2 IoCs

Processes:

svchost.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\CLASSES\XXXX	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\XXXX\CLSID = 36003500370039004400330039004200460031003200330034004300320043000000	svchost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

svchost.exemsiexec.exe

pid	process
808	svchost.exe
808	svchost.exe
808	svchost.exe
808	svchost.exe
808	svchost.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
808	svchost.exe
808	svchost.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
808	svchost.exe
808	svchost.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
808	svchost.exe
808	svchost.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
808	svchost.exe
808	svchost.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
1380	msiexec.exe
808	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

svchost.exemsiexec.exe

pid process

808 svchost.exe
1380 msiexec.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

Mc.exeMc.exesvchost.exemsiexec.exe

description	pid	process
Token: SeDebugPrivilege	428	Mc.exe
Token: SeTcbPrivilege	428	Mc.exe
Token: SeDebugPrivilege	336	Mc.exe
Token: SeTcbPrivilege	336	Mc.exe
Token: SeDebugPrivilege	808	svchost.exe
Token: SeTcbPrivilege	808	svchost.exe
Token: SeDebugPrivilege	1380	msiexec.exe
Token: SeTcbPrivilege	1380	msiexec.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exeMc.exesvchost.exe

description	pid	process	target process
PID 1472 wrote to memory of 428	1472	8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe	Mc.exe
PID 1472 wrote to memory of 428	1472	8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe	Mc.exe
PID 1472 wrote to memory of 428	1472	8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe	Mc.exe
PID 1472 wrote to memory of 428	1472	8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe	Mc.exe
PID 1472 wrote to memory of 428	1472	8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe	Mc.exe
PID 1472 wrote to memory of 428	1472	8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe	Mc.exe
PID 1472 wrote to memory of 428	1472	8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe	Mc.exe
PID 336 wrote to memory of 808	336	Mc.exe	svchost.exe
PID 336 wrote to memory of 808	336	Mc.exe	svchost.exe
PID 336 wrote to memory of 808	336	Mc.exe	svchost.exe
PID 336 wrote to memory of 808	336	Mc.exe	svchost.exe
PID 336 wrote to memory of 808	336	Mc.exe	svchost.exe
PID 336 wrote to memory of 808	336	Mc.exe	svchost.exe
PID 336 wrote to memory of 808	336	Mc.exe	svchost.exe
PID 336 wrote to memory of 808	336	Mc.exe	svchost.exe
PID 336 wrote to memory of 808	336	Mc.exe	svchost.exe
PID 808 wrote to memory of 1380	808	svchost.exe	msiexec.exe
PID 808 wrote to memory of 1380	808	svchost.exe	msiexec.exe
PID 808 wrote to memory of 1380	808	svchost.exe	msiexec.exe
PID 808 wrote to memory of 1380	808	svchost.exe	msiexec.exe
PID 808 wrote to memory of 1380	808	svchost.exe	msiexec.exe
PID 808 wrote to memory of 1380	808	svchost.exe	msiexec.exe
PID 808 wrote to memory of 1380	808	svchost.exe	msiexec.exe
PID 808 wrote to memory of 1380	808	svchost.exe	msiexec.exe
PID 808 wrote to memory of 1380	808	svchost.exe	msiexec.exe
PID 808 wrote to memory of 1380	808	svchost.exe	msiexec.exe
PID 808 wrote to memory of 1380	808	svchost.exe	msiexec.exe
PID 808 wrote to memory of 1380	808	svchost.exe	msiexec.exe

C:\Users\Admin\AppData\Local\Temp\8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe
"C:\Users\Admin\AppData\Local\Temp\8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1472
- C:\Users\Admin\AppData\Local\Temp\RarSFX0\Mc.exe
  "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Mc.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of AdjustPrivilegeToken
  PID:428

C:\ProgramData\MC\Mc.exe
C:\ProgramData\MC\Mc.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:336
- C:\Windows\SysWOW64\svchost.exe
  C:\Windows\system32\svchost.exe
  2⤵
  - Deletes itself
  - Modifies data under HKEY_USERS
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:808
- - C:\Windows\SysWOW64\msiexec.exe
    C:\Windows\SysWOW64\msiexec.exe
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:1380

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\MC\Mc.exe

MD5
884d46c01c762ad6ddd2759fd921bf71

SHA1
d201b130232e0ea411daa23c1ba2892fe6468712

SHA256
3124fcb79da0bdf9d0d1995e37b06f7929d83c1c4b60e38c104743be71170efe

SHA512
0acb3fe1050c1c07880ed2161956c4bee7c1e813a5fb518059b9bb88ed0bff50c108ad7b3708b6568413df4bdcc6f4d26dcd8759625a5ab77c4b26c1ba4f8813

Download Submit
C:\ProgramData\MC\McUtil.dll

MD5
ffa5f4b6b580d53bc311d6e5bace3110

SHA1
d599ca575b995d8de971aed8a64762225bde386d

SHA256
9857e40be1fb5b9b6db93dc03f96f6b3ff0ffab85af7944dddcac0e37775ab02

SHA512
20ac2b2508e931d545e952d29afa5ee8ce6600934e56ff8aee169ee2e1cb7c0d7eb1396c947edb45c31a434bd17ceada0cdfd5ea0c11ce7cc7298cbac4c9ca90

Download Submit
C:\ProgramData\MC\McUtil.dll.url

MD5
e8f20ec41ae7091198579a1b731f6da2

SHA1
ac524110bcf5148db5f0d0b7f0ff42f3470209b4

SHA256
27b9495c45248c3702d355323d8e70731f87c4889abebc6967265c83527e40e7

SHA512
7686e53076993926ed7f012d5cde0848d6b5119ef1a5f6760e382f72c2ff3205a5d2fc6846778ee4e560bd01c8b2eedb46ab5efed8152aa588891dfa8b761bd8

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\Mc.exe

MD5
884d46c01c762ad6ddd2759fd921bf71

SHA1
d201b130232e0ea411daa23c1ba2892fe6468712

SHA256
3124fcb79da0bdf9d0d1995e37b06f7929d83c1c4b60e38c104743be71170efe

SHA512
0acb3fe1050c1c07880ed2161956c4bee7c1e813a5fb518059b9bb88ed0bff50c108ad7b3708b6568413df4bdcc6f4d26dcd8759625a5ab77c4b26c1ba4f8813

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\Mc.exe

MD5
884d46c01c762ad6ddd2759fd921bf71

SHA1
d201b130232e0ea411daa23c1ba2892fe6468712

SHA256
3124fcb79da0bdf9d0d1995e37b06f7929d83c1c4b60e38c104743be71170efe

SHA512
0acb3fe1050c1c07880ed2161956c4bee7c1e813a5fb518059b9bb88ed0bff50c108ad7b3708b6568413df4bdcc6f4d26dcd8759625a5ab77c4b26c1ba4f8813

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\McUtil.dll

MD5
ffa5f4b6b580d53bc311d6e5bace3110

SHA1
d599ca575b995d8de971aed8a64762225bde386d

SHA256
9857e40be1fb5b9b6db93dc03f96f6b3ff0ffab85af7944dddcac0e37775ab02

SHA512
20ac2b2508e931d545e952d29afa5ee8ce6600934e56ff8aee169ee2e1cb7c0d7eb1396c947edb45c31a434bd17ceada0cdfd5ea0c11ce7cc7298cbac4c9ca90

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\McUtil.dll.url

MD5
e8f20ec41ae7091198579a1b731f6da2

SHA1
ac524110bcf5148db5f0d0b7f0ff42f3470209b4

SHA256
27b9495c45248c3702d355323d8e70731f87c4889abebc6967265c83527e40e7

SHA512
7686e53076993926ed7f012d5cde0848d6b5119ef1a5f6760e382f72c2ff3205a5d2fc6846778ee4e560bd01c8b2eedb46ab5efed8152aa588891dfa8b761bd8

Download Submit
\ProgramData\MC\McUtil.dll

MD5
ffa5f4b6b580d53bc311d6e5bace3110

SHA1
d599ca575b995d8de971aed8a64762225bde386d

SHA256
9857e40be1fb5b9b6db93dc03f96f6b3ff0ffab85af7944dddcac0e37775ab02

SHA512
20ac2b2508e931d545e952d29afa5ee8ce6600934e56ff8aee169ee2e1cb7c0d7eb1396c947edb45c31a434bd17ceada0cdfd5ea0c11ce7cc7298cbac4c9ca90

Download Submit
\Users\Admin\AppData\Local\Temp\RarSFX0\Mc.exe

MD5
884d46c01c762ad6ddd2759fd921bf71

SHA1
d201b130232e0ea411daa23c1ba2892fe6468712

SHA256
3124fcb79da0bdf9d0d1995e37b06f7929d83c1c4b60e38c104743be71170efe

SHA512
0acb3fe1050c1c07880ed2161956c4bee7c1e813a5fb518059b9bb88ed0bff50c108ad7b3708b6568413df4bdcc6f4d26dcd8759625a5ab77c4b26c1ba4f8813

Download Submit
\Users\Admin\AppData\Local\Temp\RarSFX0\Mc.exe

MD5
884d46c01c762ad6ddd2759fd921bf71

SHA1
d201b130232e0ea411daa23c1ba2892fe6468712

SHA256
3124fcb79da0bdf9d0d1995e37b06f7929d83c1c4b60e38c104743be71170efe

SHA512
0acb3fe1050c1c07880ed2161956c4bee7c1e813a5fb518059b9bb88ed0bff50c108ad7b3708b6568413df4bdcc6f4d26dcd8759625a5ab77c4b26c1ba4f8813

Download Submit
\Users\Admin\AppData\Local\Temp\RarSFX0\Mc.exe

MD5
884d46c01c762ad6ddd2759fd921bf71

SHA1
d201b130232e0ea411daa23c1ba2892fe6468712

SHA256
3124fcb79da0bdf9d0d1995e37b06f7929d83c1c4b60e38c104743be71170efe

SHA512
0acb3fe1050c1c07880ed2161956c4bee7c1e813a5fb518059b9bb88ed0bff50c108ad7b3708b6568413df4bdcc6f4d26dcd8759625a5ab77c4b26c1ba4f8813

Download Submit
\Users\Admin\AppData\Local\Temp\RarSFX0\Mc.exe

MD5
884d46c01c762ad6ddd2759fd921bf71

SHA1
d201b130232e0ea411daa23c1ba2892fe6468712

SHA256
3124fcb79da0bdf9d0d1995e37b06f7929d83c1c4b60e38c104743be71170efe

SHA512
0acb3fe1050c1c07880ed2161956c4bee7c1e813a5fb518059b9bb88ed0bff50c108ad7b3708b6568413df4bdcc6f4d26dcd8759625a5ab77c4b26c1ba4f8813

Download Submit
\Users\Admin\AppData\Local\Temp\RarSFX0\Mc.exe

MD5
884d46c01c762ad6ddd2759fd921bf71

SHA1
d201b130232e0ea411daa23c1ba2892fe6468712

SHA256
3124fcb79da0bdf9d0d1995e37b06f7929d83c1c4b60e38c104743be71170efe

SHA512
0acb3fe1050c1c07880ed2161956c4bee7c1e813a5fb518059b9bb88ed0bff50c108ad7b3708b6568413df4bdcc6f4d26dcd8759625a5ab77c4b26c1ba4f8813

Download Submit
\Users\Admin\AppData\Local\Temp\RarSFX0\McUtil.dll

MD5
ffa5f4b6b580d53bc311d6e5bace3110

SHA1
d599ca575b995d8de971aed8a64762225bde386d

SHA256
9857e40be1fb5b9b6db93dc03f96f6b3ff0ffab85af7944dddcac0e37775ab02

SHA512
20ac2b2508e931d545e952d29afa5ee8ce6600934e56ff8aee169ee2e1cb7c0d7eb1396c947edb45c31a434bd17ceada0cdfd5ea0c11ce7cc7298cbac4c9ca90

Download Submit
memory/336-78-0x00000000002A0000-0x00000000002C7000-memory.dmp

Filesize
156KB

Download
memory/428-67-0x0000000001C50000-0x0000000001D50000-memory.dmp

Filesize
1024KB

Download
memory/428-68-0x0000000000290000-0x00000000002B7000-memory.dmp

Filesize
156KB

Download
memory/428-66-0x0000000000402000-0x0000000000403000-memory.dmp

Filesize
4KB

Download
memory/808-74-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/808-76-0x00000000000A0000-0x00000000000B7000-memory.dmp

Filesize
92KB

Download
memory/808-77-0x00000000000C0000-0x00000000000C2000-memory.dmp

Filesize
8KB

Download
memory/808-79-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/808-80-0x0000000000390000-0x00000000003B5000-memory.dmp

Filesize
148KB

Download
memory/1380-86-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/1380-87-0x0000000000240000-0x0000000000265000-memory.dmp

Filesize
148KB

Download
memory/1472-54-0x0000000076151000-0x0000000076153000-memory.dmp

Filesize
8KB

Download