bc67a07aba076cbfe645c9a7ec6a7eefb738571e70edb75162c827a5604ea627

Analysis

max time kernel
12s
max time network
16s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
06/12/2022, 19:33

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Reason

Machine shutdown

Report Analysis Logs

General

Target

bc67a07aba076cbfe645c9a7ec6a7eefb738571e70edb75162c827a5604ea627.exe
Size

50KB
MD5

7f40b5679ed2df05c765100efc4789d8
SHA1

d5031f6ae7c4b069244854528749848256c3fc5a
SHA256

bc67a07aba076cbfe645c9a7ec6a7eefb738571e70edb75162c827a5604ea627
SHA512

f9a2a35deeb03f1fd5c427b760f0bc5e07854b2551b31982a380a07bbc55da4659d41dcc334ac509b33253c334621bd258c1fcbe8a4af4b576b1b534729ead57
SSDEEP

768:GoxusVVzsBYqxwZLViLy7RFpvLXuZr32BBaAriUFE0tFmvDRLCkC5HVYPCo:3kG8w+LyNFxLXKyBhXm0tFmvDSHyP

Score

7^/10

persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
544	cmd.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\USER\S-1-5-21-4063495947-34355257-727531523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\1354120533 = "C:\\Users\\Admin\\1354120533.exe"	reg.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	960	bc67a07aba076cbfe645c9a7ec6a7eefb738571e70edb75162c827a5604ea627.exe
Token: SeShutdownPrivilege	1484	shutdown.exe
Token: SeRemoteShutdownPrivilege	1484	shutdown.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
960	bc67a07aba076cbfe645c9a7ec6a7eefb738571e70edb75162c827a5604ea627.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 960 wrote to memory of 956	960	bc67a07aba076cbfe645c9a7ec6a7eefb738571e70edb75162c827a5604ea627.exe	27
PID 960 wrote to memory of 956	960	bc67a07aba076cbfe645c9a7ec6a7eefb738571e70edb75162c827a5604ea627.exe	27
PID 960 wrote to memory of 956	960	bc67a07aba076cbfe645c9a7ec6a7eefb738571e70edb75162c827a5604ea627.exe	27
PID 960 wrote to memory of 956	960	bc67a07aba076cbfe645c9a7ec6a7eefb738571e70edb75162c827a5604ea627.exe	27
PID 956 wrote to memory of 556	956	cmd.exe	29
PID 956 wrote to memory of 556	956	cmd.exe	29
PID 956 wrote to memory of 556	956	cmd.exe	29
PID 956 wrote to memory of 556	956	cmd.exe	29
PID 960 wrote to memory of 1484	960	bc67a07aba076cbfe645c9a7ec6a7eefb738571e70edb75162c827a5604ea627.exe	30
PID 960 wrote to memory of 1484	960	bc67a07aba076cbfe645c9a7ec6a7eefb738571e70edb75162c827a5604ea627.exe	30
PID 960 wrote to memory of 1484	960	bc67a07aba076cbfe645c9a7ec6a7eefb738571e70edb75162c827a5604ea627.exe	30
PID 960 wrote to memory of 1484	960	bc67a07aba076cbfe645c9a7ec6a7eefb738571e70edb75162c827a5604ea627.exe	30
PID 960 wrote to memory of 544	960	bc67a07aba076cbfe645c9a7ec6a7eefb738571e70edb75162c827a5604ea627.exe	32
PID 960 wrote to memory of 544	960	bc67a07aba076cbfe645c9a7ec6a7eefb738571e70edb75162c827a5604ea627.exe	32
PID 960 wrote to memory of 544	960	bc67a07aba076cbfe645c9a7ec6a7eefb738571e70edb75162c827a5604ea627.exe	32
PID 960 wrote to memory of 544	960	bc67a07aba076cbfe645c9a7ec6a7eefb738571e70edb75162c827a5604ea627.exe	32

C:\Users\Admin\AppData\Local\Temp\bc67a07aba076cbfe645c9a7ec6a7eefb738571e70edb75162c827a5604ea627.exe
"C:\Users\Admin\AppData\Local\Temp\bc67a07aba076cbfe645c9a7ec6a7eefb738571e70edb75162c827a5604ea627.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:960
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v 1354120533 /t REG_SZ /d "%userprofile%\1354120533.exe" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:956
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v 1354120533 /t REG_SZ /d "C:\Users\Admin\1354120533.exe" /f
    3⤵
    - Adds Run key to start application
    PID:556
- C:\Windows\SysWOW64\shutdown.exe
  "C:\Windows\System32\shutdown.exe" /r /f /t 3
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1484
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\BC67A0~1.EXE > nul
  2⤵
  - Deletes itself
  PID:544

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:940

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:1960

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/940-61-0x000007FEFC011000-0x000007FEFC013000-memory.dmp

Filesize
8KB

Download
memory/960-54-0x00000000757A1000-0x00000000757A3000-memory.dmp

Filesize
8KB

Download
memory/960-59-0x0000000000220000-0x0000000000230000-memory.dmp

Filesize
64KB

Download
memory/960-60-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download