99c074ad455af64c03b4938d6844dc8d3a96e8713cf525f126b15e25fcd52d90

Analysis

max time kernel
36s
max time network
41s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
02-10-2022 00:08

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General

Target

99c074ad455af64c03b4938d6844dc8d3a96e8713cf525f126b15e25fcd52d90.exe
Size

76KB
MD5

652102f0db6368e98e6dffdd6498b7a0
SHA1

9a9dc3e5cee442196e8df3dd7e1b01f103eae722
SHA256

99c074ad455af64c03b4938d6844dc8d3a96e8713cf525f126b15e25fcd52d90
SHA512

268552b502ef53af6c8234b84738a26b1360dce63fbfe35fe9a097d511120da8d57ca878181cf4a892142ee8d585ad1d97863b84f803adcac530e2887c126979
SSDEEP

1536:VidlOpAR0c+o3Kef6b4B4qnjmNHp00HJazt+ZpRN:AdguofbMnyw0HJaRgN

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1332	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 value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	99c074ad455af64c03b4938d6844dc8d3a96e8713cf525f126b15e25fcd52d90.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	99c074ad455af64c03b4938d6844dc8d3a96e8713cf525f126b15e25fcd52d90.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
832	tasklist.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	832	tasklist.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1612	99c074ad455af64c03b4938d6844dc8d3a96e8713cf525f126b15e25fcd52d90.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 1332	1612	99c074ad455af64c03b4938d6844dc8d3a96e8713cf525f126b15e25fcd52d90.exe	27
PID 1612 wrote to memory of 1332	1612	99c074ad455af64c03b4938d6844dc8d3a96e8713cf525f126b15e25fcd52d90.exe	27
PID 1612 wrote to memory of 1332	1612	99c074ad455af64c03b4938d6844dc8d3a96e8713cf525f126b15e25fcd52d90.exe	27
PID 1612 wrote to memory of 1332	1612	99c074ad455af64c03b4938d6844dc8d3a96e8713cf525f126b15e25fcd52d90.exe	27
PID 1332 wrote to memory of 832	1332	cmd.exe	29
PID 1332 wrote to memory of 832	1332	cmd.exe	29
PID 1332 wrote to memory of 832	1332	cmd.exe	29
PID 1332 wrote to memory of 832	1332	cmd.exe	29

C:\Users\Admin\AppData\Local\Temp\99c074ad455af64c03b4938d6844dc8d3a96e8713cf525f126b15e25fcd52d90.exe
"C:\Users\Admin\AppData\Local\Temp\99c074ad455af64c03b4938d6844dc8d3a96e8713cf525f126b15e25fcd52d90.exe"
1⤵
- Maps connected drives based on registry
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1612
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c tasklist&&del 99c074ad455af64c03b4938d6844dc8d3a96e8713cf525f126b15e25fcd52d90.exe
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1332
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:832

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/832-59-0x0000000000000000-mapping.dmp

Download
memory/1332-58-0x0000000000000000-mapping.dmp

Download
memory/1612-56-0x0000000076681000-0x0000000076683000-memory.dmp

Filesize
8KB

Download
memory/1612-57-0x0000000004250000-0x0000000004D0A000-memory.dmp

Filesize
10.7MB

Download