4d9b521f377840392e1b81e0d0cbc3cba213256877ea4953efa249e513b9b893

Analysis

max time kernel
34s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
30-10-2022 06:00

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General

Target

4d9b521f377840392e1b81e0d0cbc3cba213256877ea4953efa249e513b9b893.exe
Size

65KB
MD5

83e286e273e670b2dc93a93b92714b8a
SHA1

af21968799d7e4edbea750738b52ef7097ea7fcd
SHA256

4d9b521f377840392e1b81e0d0cbc3cba213256877ea4953efa249e513b9b893
SHA512

f39d9bb657b535de9e6f898eb4ba561c707517f9b834fed4d6c76b7ecdab416fb6627efb81b71d2bbb5576796865aafc8fbfd4577b8a7e34634783fe5c7b3a80
SSDEEP

768:SYJ/HEdRbAY0iUNvevdtFeebD+Tq/QwIt0L06WRR373nMle29+I4U+2HC:SYeSn+ms+Tq/Qw106S73nMlfPNi

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1824	cmd.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	4d9b521f377840392e1b81e0d0cbc3cba213256877ea4953efa249e513b9b893.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	4d9b521f377840392e1b81e0d0cbc3cba213256877ea4953efa249e513b9b893.exe

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

System Information Discovery
T1082

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
664	tasklist.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	664	tasklist.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
880	4d9b521f377840392e1b81e0d0cbc3cba213256877ea4953efa249e513b9b893.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 880 wrote to memory of 1824	880	4d9b521f377840392e1b81e0d0cbc3cba213256877ea4953efa249e513b9b893.exe	29
PID 880 wrote to memory of 1824	880	4d9b521f377840392e1b81e0d0cbc3cba213256877ea4953efa249e513b9b893.exe	29
PID 880 wrote to memory of 1824	880	4d9b521f377840392e1b81e0d0cbc3cba213256877ea4953efa249e513b9b893.exe	29
PID 880 wrote to memory of 1824	880	4d9b521f377840392e1b81e0d0cbc3cba213256877ea4953efa249e513b9b893.exe	29
PID 1824 wrote to memory of 664	1824	cmd.exe	30
PID 1824 wrote to memory of 664	1824	cmd.exe	30
PID 1824 wrote to memory of 664	1824	cmd.exe	30
PID 1824 wrote to memory of 664	1824	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\4d9b521f377840392e1b81e0d0cbc3cba213256877ea4953efa249e513b9b893.exe
"C:\Users\Admin\AppData\Local\Temp\4d9b521f377840392e1b81e0d0cbc3cba213256877ea4953efa249e513b9b893.exe"
1⤵
- Maps connected drives based on registry
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:880
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c tasklist&&del 4d9b521f377840392e1b81e0d0cbc3cba213256877ea4953efa249e513b9b893.exe
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1824
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:664

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Process Discovery

T1057

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/880-56-0x0000000075071000-0x0000000075073000-memory.dmp

Filesize
8KB

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