aa870e1218a74e244dbe047277a2037c22c4460cb5ebfc5d12267950121bad6f

Analysis

max time kernel
121s
max time network
126s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
11-05-2024 10:33

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General

Target

$TEMP/uninst.exe
Size

50KB
MD5

e98ac0b9c5264d56d7a69dbf4fb82f28
SHA1

3ffadf822494ba1b63bd10872dc4ee5dc80e18b4
SHA256

6b85e8131032b744d7ff79cf934309a5bb79f527db50d58fd70ccdd4379c683f
SHA512

94edb6485ece8890124f612b71db83a0287e306e2796a537a25cb4df5c3fdcd3b56f1a5afb11c877a5825793572ebb1728323e7c20c629dff6c73784287f17d9
SSDEEP

1536:AsHllqRxeiMfvHSlzchN0MF0DBwwcZgdLeAyN/SDR:JPqRxga51PDBfcZceARN

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

Un_A.exe

pid process

2192 Un_A.exe
Loads dropped DLL 1 IoCs

Processes:

uninst.exe

pid process

2852 uninst.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2192	Un_A.exe

pid	process
2852	uninst.exe

NSIS installer 2 IoCs

installer

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe	nsis_installer_1
\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Un_A.exe

pid process

2192 Un_A.exe

pid	process
2192	Un_A.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

uninst.exe

description	pid	process	target process
PID 2852 wrote to memory of 2192	2852	uninst.exe	Un_A.exe
PID 2852 wrote to memory of 2192	2852	uninst.exe	Un_A.exe
PID 2852 wrote to memory of 2192	2852	uninst.exe	Un_A.exe
PID 2852 wrote to memory of 2192	2852	uninst.exe	Un_A.exe

C:\Users\Admin\AppData\Local\Temp\$TEMP\uninst.exe
"C:\Users\Admin\AppData\Local\Temp\$TEMP\uninst.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2852

C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
"C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\$TEMP\
2⤵
- Executes dropped EXE
- Suspicious behavior: GetForegroundWindowSpam
PID:2192

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe

Filesize
50KB

MD5
e98ac0b9c5264d56d7a69dbf4fb82f28

SHA1
3ffadf822494ba1b63bd10872dc4ee5dc80e18b4

SHA256
6b85e8131032b744d7ff79cf934309a5bb79f527db50d58fd70ccdd4379c683f

SHA512
94edb6485ece8890124f612b71db83a0287e306e2796a537a25cb4df5c3fdcd3b56f1a5afb11c877a5825793572ebb1728323e7c20c629dff6c73784287f17d9

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