37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196

Analysis

max time kernel
297s
max time network
317s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
25/11/2022, 22:19

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General

Target

37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe
Size

562KB
MD5

50df2352d8d1d223f651467157e03c16
SHA1

1f94ec4d79516c4b0d0e41eb7559615ec007369b
SHA256

37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196
SHA512

000f2aabfd7809da031a752140e016d1529d6a828c4e8179a3bf7a3b98ccf259fffff500ea9bb6cd7fa8fd6e8d3a361ce0563878720292e3546e47a2a6f04f49
SSDEEP

12288:VPRYzJbfGkPvGg85WqOxmi0waAbxxUMIoII/vNIv1+:cz9f7XGgXnOAtxRqI/lY1

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 3 IoCs

pid	Process
1100	37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe
1100	37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe
1100	37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe

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

System Information Discovery
T1082
Runs net.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1100 wrote to memory of 2360	1100	37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe	80
PID 1100 wrote to memory of 2360	1100	37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe	80
PID 1100 wrote to memory of 2360	1100	37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe	80
PID 2360 wrote to memory of 3592	2360	net.exe	84
PID 2360 wrote to memory of 3592	2360	net.exe	84
PID 2360 wrote to memory of 3592	2360	net.exe	84

C:\Users\Admin\AppData\Local\Temp\37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe
"C:\Users\Admin\AppData\Local\Temp\37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1100
- C:\Windows\SysWOW64\net.exe
  net stop nethttpservice
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2360
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop nethttpservice
    3⤵
    PID:3592

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsm871A.tmp\System.dll

Filesize
11KB

MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsm871A.tmp\nsExec.dll

Filesize
6KB

MD5
acc2b699edfea5bf5aae45aba3a41e96

SHA1
d2accf4d494e43ceb2cff69abe4dd17147d29cc2

SHA256
168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

SHA512
e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsm871A.tmp\nsExec.dll

Filesize
6KB

MD5
acc2b699edfea5bf5aae45aba3a41e96

SHA1
d2accf4d494e43ceb2cff69abe4dd17147d29cc2

SHA256
168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

SHA512
e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

Download Submit
memory/1100-136-0x0000000000360000-0x00000000007BE000-memory.dmp

Filesize
4.4MB

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