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

pid	Process
428	Mc.exe
336	Mc.exe

Deletes itself 1 IoCs

pid	Process
808	svchost.exe

Loads dropped DLL 7 IoCs

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

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

Modifies registry class 2 IoCs

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

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

pid	Process
808	svchost.exe
1380	msiexec.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

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

description	pid	Process	procid_target
PID 1472 wrote to memory of 428	1472	8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe	27
PID 1472 wrote to memory of 428	1472	8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe	27
PID 1472 wrote to memory of 428	1472	8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe	27
PID 1472 wrote to memory of 428	1472	8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe	27
PID 1472 wrote to memory of 428	1472	8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe	27
PID 1472 wrote to memory of 428	1472	8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe	27
PID 1472 wrote to memory of 428	1472	8df2949d77aff0ef84af7c2a892602e05d3518d85b87fa5ed56493199efd2143.exe	27
PID 336 wrote to memory of 808	336	Mc.exe	29
PID 336 wrote to memory of 808	336	Mc.exe	29
PID 336 wrote to memory of 808	336	Mc.exe	29
PID 336 wrote to memory of 808	336	Mc.exe	29
PID 336 wrote to memory of 808	336	Mc.exe	29
PID 336 wrote to memory of 808	336	Mc.exe	29
PID 336 wrote to memory of 808	336	Mc.exe	29
PID 336 wrote to memory of 808	336	Mc.exe	29
PID 336 wrote to memory of 808	336	Mc.exe	29
PID 808 wrote to memory of 1380	808	svchost.exe	31
PID 808 wrote to memory of 1380	808	svchost.exe	31
PID 808 wrote to memory of 1380	808	svchost.exe	31
PID 808 wrote to memory of 1380	808	svchost.exe	31
PID 808 wrote to memory of 1380	808	svchost.exe	31
PID 808 wrote to memory of 1380	808	svchost.exe	31
PID 808 wrote to memory of 1380	808	svchost.exe	31
PID 808 wrote to memory of 1380	808	svchost.exe	31
PID 808 wrote to memory of 1380	808	svchost.exe	31
PID 808 wrote to memory of 1380	808	svchost.exe	31
PID 808 wrote to memory of 1380	808	svchost.exe	31
PID 808 wrote to memory of 1380	808	svchost.exe	31

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

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