3a11b3665b31adb0a59db0303f604e4b20400dcdd3d1d25b76fa247bcca00571

Analysis

max time kernel
39s
max time network
44s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
06/11/2022, 15:12

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General

Target

3a11b3665b31adb0a59db0303f604e4b20400dcdd3d1d25b76fa247bcca00571.exe
Size

74KB
MD5

0f16cdacb0160f7b6c73878d97857ef0
SHA1

e6734f3764be0c3f4fb404de22032a2745c62a09
SHA256

3a11b3665b31adb0a59db0303f604e4b20400dcdd3d1d25b76fa247bcca00571
SHA512

935a6a4c73fc16375a2873979149a5c4ec38be20bcb7c16b655759b6e03672d43c6a7c93e577060fdad9d1c7df818636fae870f6fb222c3b85cbb77c832117cd
SSDEEP

768:5LLJm2DBTClcALYUP1Dpx0pcTV6oIqC9tw2jOalQ:hLY7cALDPdp6CC9tLQ

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
700	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	3a11b3665b31adb0a59db0303f604e4b20400dcdd3d1d25b76fa247bcca00571.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	3a11b3665b31adb0a59db0303f604e4b20400dcdd3d1d25b76fa247bcca00571.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
1764	tasklist.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1764	tasklist.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1148	3a11b3665b31adb0a59db0303f604e4b20400dcdd3d1d25b76fa247bcca00571.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1148 wrote to memory of 700	1148	3a11b3665b31adb0a59db0303f604e4b20400dcdd3d1d25b76fa247bcca00571.exe	28
PID 1148 wrote to memory of 700	1148	3a11b3665b31adb0a59db0303f604e4b20400dcdd3d1d25b76fa247bcca00571.exe	28
PID 1148 wrote to memory of 700	1148	3a11b3665b31adb0a59db0303f604e4b20400dcdd3d1d25b76fa247bcca00571.exe	28
PID 1148 wrote to memory of 700	1148	3a11b3665b31adb0a59db0303f604e4b20400dcdd3d1d25b76fa247bcca00571.exe	28
PID 700 wrote to memory of 1764	700	cmd.exe	30
PID 700 wrote to memory of 1764	700	cmd.exe	30
PID 700 wrote to memory of 1764	700	cmd.exe	30
PID 700 wrote to memory of 1764	700	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\3a11b3665b31adb0a59db0303f604e4b20400dcdd3d1d25b76fa247bcca00571.exe
"C:\Users\Admin\AppData\Local\Temp\3a11b3665b31adb0a59db0303f604e4b20400dcdd3d1d25b76fa247bcca00571.exe"
1⤵
- Maps connected drives based on registry
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1148
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c tasklist&&del 3a11b3665b31adb0a59db0303f604e4b20400dcdd3d1d25b76fa247bcca00571.exe
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:700
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:1764

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/1148-56-0x0000000074C11000-0x0000000074C13000-memory.dmp

Filesize
8KB

Download
memory/1148-57-0x00000000040F0000-0x0000000004BAA000-memory.dmp

Filesize
10.7MB

Download