73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349

General

Target

73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe
Size

21KB
MD5

4fa9e799040df3b7131e264b32a8cfd6
SHA1

770c5c1d01677afca31515a9a9bbe520f41a1060
SHA256

73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349
SHA512

64dc76b9cc0dd42094db0621d369c252e7e06f431f5ee2d5d5a8041db544700f89897aea4f9c031da7a62156b2835b311a6c56d1e6a359083576b8719f9b8f18
SSDEEP

384:OGLvGoN8npeUWozguegkwZNDI3ku6ZRpesDuxqQ:Xvinpe3tgkmdEl0LKxx

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\Zxtsqjwh = "\"C:\\Users\\Admin\\AppData\\Roaming\\Bmcnu\\Zxtsqjwh.exe\""	73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2020 set thread context of 516	2020	73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe	28

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1888	powershell.exe
2020	73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2020	73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe
Token: SeDebugPrivilege	1888	powershell.exe
Token: SeDebugPrivilege	516	73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2020 wrote to memory of 1888	2020	73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe	26
PID 2020 wrote to memory of 1888	2020	73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe	26
PID 2020 wrote to memory of 1888	2020	73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe	26
PID 2020 wrote to memory of 1888	2020	73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe	26
PID 2020 wrote to memory of 516	2020	73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe	28
PID 2020 wrote to memory of 516	2020	73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe	28
PID 2020 wrote to memory of 516	2020	73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe	28
PID 2020 wrote to memory of 516	2020	73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe	28
PID 2020 wrote to memory of 516	2020	73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe	28
PID 2020 wrote to memory of 516	2020	73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe	28
PID 2020 wrote to memory of 516	2020	73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe	28
PID 2020 wrote to memory of 516	2020	73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe	28
PID 2020 wrote to memory of 516	2020	73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe	28

C:\Users\Admin\AppData\Local\Temp\73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe
"C:\Users\Admin\AppData\Local\Temp\73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2020
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANAA1AA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1888
- C:\Users\Admin\AppData\Local\Temp\73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe
  C:\Users\Admin\AppData\Local\Temp\73b9f20e45050ddac888a8fc53be2023393b49b8343ed721d44461fab739d349.exe
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:516

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/516-73-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/516-74-0x00000000020E0000-0x000000000218E000-memory.dmp

Filesize
696KB

Download
memory/516-79-0x0000000004960000-0x00000000049B4000-memory.dmp

Filesize
336KB

Download
memory/516-78-0x0000000002240000-0x000000000228C000-memory.dmp

Filesize
304KB

Download
memory/516-77-0x0000000000630000-0x0000000000684000-memory.dmp

Filesize
336KB

Download
memory/516-75-0x0000000000590000-0x00000000005E6000-memory.dmp

Filesize
344KB

Download
memory/516-68-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/516-71-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/516-63-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/516-64-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/516-67-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/516-66-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/1888-62-0x000000006F0B0000-0x000000006F65B000-memory.dmp

Filesize
5.7MB

Download
memory/1888-61-0x000000006F0B0000-0x000000006F65B000-memory.dmp

Filesize
5.7MB

Download
memory/1888-60-0x000000006F0B0000-0x000000006F65B000-memory.dmp

Filesize
5.7MB

Download
memory/2020-55-0x0000000075451000-0x0000000075453000-memory.dmp

Filesize
8KB

Download
memory/2020-54-0x0000000000140000-0x000000000014C000-memory.dmp

Filesize
48KB

Download
memory/2020-57-0x0000000005450000-0x00000000054E2000-memory.dmp

Filesize
584KB

Download
memory/2020-56-0x0000000005660000-0x000000000579E000-memory.dmp

Filesize
1.2MB

Download

Analysis

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