c64bfeb7e6e641f7c11d8dd08914710df0282b5b7cb2ef26772cdf5a2abe23d2

Analysis

max time kernel
86s
max time network
87s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07/11/2022, 18:40

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Reason

Machine shutdown

Report Analysis Logs

General

Target

c64bfeb7e6e641f7c11d8dd08914710df0282b5b7cb2ef26772cdf5a2abe23d2.exe
Size

53KB
MD5

0d596a2483431c9f6ef96323956345c8
SHA1

f3b27081476e768b3076611feb3a90d6925f5a32
SHA256

c64bfeb7e6e641f7c11d8dd08914710df0282b5b7cb2ef26772cdf5a2abe23d2
SHA512

52b9169b878c22db1a95465e8275f86fc34e148155b3af6732c86470936f574ec1c61d2bf685767e742f334e099aeab4cf7789f961c25a63dbf4d36e2d420e02
SSDEEP

768:fW5i5fm4vVLnlFDEZ80sprqSw/ZHOBFoSEWbDI41M8uF+Uqkcr:yinxlFD10YWSw/ZHOBFCoDIkLd

Score

7^/10

persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1988	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-1-5-21-2292972927-2705560509-2768824231-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\663512826 = "C:\\Users\\Admin\\663512826.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	1520	c64bfeb7e6e641f7c11d8dd08914710df0282b5b7cb2ef26772cdf5a2abe23d2.exe
Token: SeShutdownPrivilege	2024	shutdown.exe
Token: SeRemoteShutdownPrivilege	2024	shutdown.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
1520	c64bfeb7e6e641f7c11d8dd08914710df0282b5b7cb2ef26772cdf5a2abe23d2.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 2040	1520	c64bfeb7e6e641f7c11d8dd08914710df0282b5b7cb2ef26772cdf5a2abe23d2.exe	27
PID 1520 wrote to memory of 2040	1520	c64bfeb7e6e641f7c11d8dd08914710df0282b5b7cb2ef26772cdf5a2abe23d2.exe	27
PID 1520 wrote to memory of 2040	1520	c64bfeb7e6e641f7c11d8dd08914710df0282b5b7cb2ef26772cdf5a2abe23d2.exe	27
PID 1520 wrote to memory of 2040	1520	c64bfeb7e6e641f7c11d8dd08914710df0282b5b7cb2ef26772cdf5a2abe23d2.exe	27
PID 2040 wrote to memory of 1724	2040	cMd.exE	29
PID 2040 wrote to memory of 1724	2040	cMd.exE	29
PID 2040 wrote to memory of 1724	2040	cMd.exE	29
PID 2040 wrote to memory of 1724	2040	cMd.exE	29
PID 1520 wrote to memory of 2024	1520	c64bfeb7e6e641f7c11d8dd08914710df0282b5b7cb2ef26772cdf5a2abe23d2.exe	30
PID 1520 wrote to memory of 2024	1520	c64bfeb7e6e641f7c11d8dd08914710df0282b5b7cb2ef26772cdf5a2abe23d2.exe	30
PID 1520 wrote to memory of 2024	1520	c64bfeb7e6e641f7c11d8dd08914710df0282b5b7cb2ef26772cdf5a2abe23d2.exe	30
PID 1520 wrote to memory of 2024	1520	c64bfeb7e6e641f7c11d8dd08914710df0282b5b7cb2ef26772cdf5a2abe23d2.exe	30
PID 1520 wrote to memory of 1988	1520	c64bfeb7e6e641f7c11d8dd08914710df0282b5b7cb2ef26772cdf5a2abe23d2.exe	32
PID 1520 wrote to memory of 1988	1520	c64bfeb7e6e641f7c11d8dd08914710df0282b5b7cb2ef26772cdf5a2abe23d2.exe	32
PID 1520 wrote to memory of 1988	1520	c64bfeb7e6e641f7c11d8dd08914710df0282b5b7cb2ef26772cdf5a2abe23d2.exe	32
PID 1520 wrote to memory of 1988	1520	c64bfeb7e6e641f7c11d8dd08914710df0282b5b7cb2ef26772cdf5a2abe23d2.exe	32

C:\Users\Admin\AppData\Local\Temp\c64bfeb7e6e641f7c11d8dd08914710df0282b5b7cb2ef26772cdf5a2abe23d2.exe
"C:\Users\Admin\AppData\Local\Temp\c64bfeb7e6e641f7c11d8dd08914710df0282b5b7cb2ef26772cdf5a2abe23d2.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1520
- C:\Windows\SysWOW64\cMd.exE
  cMd.exE /c REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v 663512826 /t REG_SZ /d "%userprofile%\663512826.exe" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2040
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v 663512826 /t REG_SZ /d "C:\Users\Admin\663512826.exe" /f
    3⤵
    - Adds Run key to start application
    PID:1724
- C:\Windows\SysWOW64\shutdown.exe
  "C:\Windows\System32\shutdown.exe" /r /f /t 3
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2024
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\C64BFE~1.EXE > nul
  2⤵
  - Deletes itself
  PID:1988

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:1344

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:1496

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/1344-61-0x000007FEFC291000-0x000007FEFC293000-memory.dmp

Filesize
8KB

Download
memory/1520-54-0x0000000075ED1000-0x0000000075ED3000-memory.dmp

Filesize
8KB

Download
memory/1520-59-0x0000000000230000-0x0000000000241000-memory.dmp

Filesize
68KB

Download
memory/1520-60-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download