0b7e9ce3f842b4f730c9531f6bddddfd3859245fc6eb8758ec9478228fb189d8

Analysis

max time kernel
41s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07-11-2022 14:55

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General

Target

0b7e9ce3f842b4f730c9531f6bddddfd3859245fc6eb8758ec9478228fb189d8.exe
Size

512KB
MD5

0de4fa66b6ecea607fc63d9773749540
SHA1

b676b8e1a63ce54aace4f8e50c4cc2660abc0712
SHA256

0b7e9ce3f842b4f730c9531f6bddddfd3859245fc6eb8758ec9478228fb189d8
SHA512

ff47fa65ee9e538fbfe7de1b9c7838340f7e04a6dcd96ba65c78ffc5a6563daa85ca2108379d29977fea2320ad560d8bd908814392eb562f52b80ead6fc6a36b
SSDEEP

12288:Ns4hG8f1PsYslobcRrgS880i50MRMc4UxYoUrO3LlS7uj5C:Ns4hjC9CClCMRoUKteLlVVC

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1104	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
1660	0b7e9ce3f842b4f730c9531f6bddddfd3859245fc6eb8758ec9478228fb189d8.exe
1104	Au_.exe
1104	Au_.exe

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

System Information Discovery
T1082

NSIS installer 6 IoCs

installer

resource	yara_rule
behavioral1/files/0x00090000000139f7-55.dat	nsis_installer_1
behavioral1/files/0x00090000000139f7-55.dat	nsis_installer_2
behavioral1/files/0x00090000000139f7-57.dat	nsis_installer_1
behavioral1/files/0x00090000000139f7-57.dat	nsis_installer_2
behavioral1/files/0x00090000000139f7-59.dat	nsis_installer_1
behavioral1/files/0x00090000000139f7-59.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 1104	1660	0b7e9ce3f842b4f730c9531f6bddddfd3859245fc6eb8758ec9478228fb189d8.exe	27
PID 1660 wrote to memory of 1104	1660	0b7e9ce3f842b4f730c9531f6bddddfd3859245fc6eb8758ec9478228fb189d8.exe	27
PID 1660 wrote to memory of 1104	1660	0b7e9ce3f842b4f730c9531f6bddddfd3859245fc6eb8758ec9478228fb189d8.exe	27
PID 1660 wrote to memory of 1104	1660	0b7e9ce3f842b4f730c9531f6bddddfd3859245fc6eb8758ec9478228fb189d8.exe	27

C:\Users\Admin\AppData\Local\Temp\0b7e9ce3f842b4f730c9531f6bddddfd3859245fc6eb8758ec9478228fb189d8.exe
"C:\Users\Admin\AppData\Local\Temp\0b7e9ce3f842b4f730c9531f6bddddfd3859245fc6eb8758ec9478228fb189d8.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1104

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\~nsu.tmp\Au_.exe

Filesize
512KB

MD5
0de4fa66b6ecea607fc63d9773749540

SHA1
b676b8e1a63ce54aace4f8e50c4cc2660abc0712

SHA256
0b7e9ce3f842b4f730c9531f6bddddfd3859245fc6eb8758ec9478228fb189d8

SHA512
ff47fa65ee9e538fbfe7de1b9c7838340f7e04a6dcd96ba65c78ffc5a6563daa85ca2108379d29977fea2320ad560d8bd908814392eb562f52b80ead6fc6a36b

Download Submit
C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

Filesize
512KB

MD5
0de4fa66b6ecea607fc63d9773749540

SHA1
b676b8e1a63ce54aace4f8e50c4cc2660abc0712

SHA256
0b7e9ce3f842b4f730c9531f6bddddfd3859245fc6eb8758ec9478228fb189d8

SHA512
ff47fa65ee9e538fbfe7de1b9c7838340f7e04a6dcd96ba65c78ffc5a6563daa85ca2108379d29977fea2320ad560d8bd908814392eb562f52b80ead6fc6a36b

Download Submit
\Users\Admin\AppData\Local\Temp\nsd19AA.tmp\spext.dll

Filesize
746KB

MD5
71be8be25eee408304e59d4b69d09ac2

SHA1
c608bcc3ad762c5b32061f07266e95701ceb9325

SHA256
fea5ad0d5ec9dc84e593eeb29f0c2bbeaf73b38e7c9ce32c2bbc021e59b1ff12

SHA512
f8960478d32b006e96df7fbb0d3791b28f56554184987cafd55ab3d44d71ed9f01d5b6873048ad61803ecf3b2e52a92d9f1515f30734285328af09f25e87eb50

Download Submit
\Users\Admin\AppData\Local\Temp\nsd19AA.tmp\spext.dll

Filesize
746KB

MD5
71be8be25eee408304e59d4b69d09ac2

SHA1
c608bcc3ad762c5b32061f07266e95701ceb9325

SHA256
fea5ad0d5ec9dc84e593eeb29f0c2bbeaf73b38e7c9ce32c2bbc021e59b1ff12

SHA512
f8960478d32b006e96df7fbb0d3791b28f56554184987cafd55ab3d44d71ed9f01d5b6873048ad61803ecf3b2e52a92d9f1515f30734285328af09f25e87eb50

Download Submit
\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

Filesize
512KB

MD5
0de4fa66b6ecea607fc63d9773749540

SHA1
b676b8e1a63ce54aace4f8e50c4cc2660abc0712

SHA256
0b7e9ce3f842b4f730c9531f6bddddfd3859245fc6eb8758ec9478228fb189d8

SHA512
ff47fa65ee9e538fbfe7de1b9c7838340f7e04a6dcd96ba65c78ffc5a6563daa85ca2108379d29977fea2320ad560d8bd908814392eb562f52b80ead6fc6a36b

Download Submit
memory/1660-54-0x0000000075F51000-0x0000000075F53000-memory.dmp

Filesize
8KB

Download