3ef36ff76ed224f2481aa3e4cfa794ad3ae3b2a92780b4429eb95bfa41c9d4a4

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 00:31

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General

Target

3ef36ff76ed224f2481aa3e4cfa794ad3ae3b2a92780b4429eb95bfa41c9d4a4.exe
Size

20KB
MD5

71252da7034e7e258d06d91cfd5e77d0
SHA1

d45c8d04beb6d26406fa5a5c0ed3e31ecc9906f6
SHA256

3ef36ff76ed224f2481aa3e4cfa794ad3ae3b2a92780b4429eb95bfa41c9d4a4
SHA512

44d59989157d177246c05ad63c30644b4b82bc0e4320e21108ad197faf59b31f0af2cb41a37f21c48096c903e7df1a03f0b1b6be77638bfdf710122a32620206
SSDEEP

384:KOdiKcfZsDiM3PfsBhnRGjLbjnsJzLq1OFU61:KOdvcf41ETfq11s

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1092	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	3ef36ff76ed224f2481aa3e4cfa794ad3ae3b2a92780b4429eb95bfa41c9d4a4.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	3ef36ff76ed224f2481aa3e4cfa794ad3ae3b2a92780b4429eb95bfa41c9d4a4.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
1056	tasklist.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1056	tasklist.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1612	3ef36ff76ed224f2481aa3e4cfa794ad3ae3b2a92780b4429eb95bfa41c9d4a4.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 1092	1612	3ef36ff76ed224f2481aa3e4cfa794ad3ae3b2a92780b4429eb95bfa41c9d4a4.exe	27
PID 1612 wrote to memory of 1092	1612	3ef36ff76ed224f2481aa3e4cfa794ad3ae3b2a92780b4429eb95bfa41c9d4a4.exe	27
PID 1612 wrote to memory of 1092	1612	3ef36ff76ed224f2481aa3e4cfa794ad3ae3b2a92780b4429eb95bfa41c9d4a4.exe	27
PID 1612 wrote to memory of 1092	1612	3ef36ff76ed224f2481aa3e4cfa794ad3ae3b2a92780b4429eb95bfa41c9d4a4.exe	27
PID 1092 wrote to memory of 1056	1092	cmd.exe	29
PID 1092 wrote to memory of 1056	1092	cmd.exe	29
PID 1092 wrote to memory of 1056	1092	cmd.exe	29
PID 1092 wrote to memory of 1056	1092	cmd.exe	29

C:\Users\Admin\AppData\Local\Temp\3ef36ff76ed224f2481aa3e4cfa794ad3ae3b2a92780b4429eb95bfa41c9d4a4.exe
"C:\Users\Admin\AppData\Local\Temp\3ef36ff76ed224f2481aa3e4cfa794ad3ae3b2a92780b4429eb95bfa41c9d4a4.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 3ef36ff76ed224f2481aa3e4cfa794ad3ae3b2a92780b4429eb95bfa41c9d4a4.exe
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1092
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:1056

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/1056-58-0x0000000000000000-mapping.dmp

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memory/1092-57-0x0000000000000000-mapping.dmp

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

Filesize
8KB

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