05a6ead51af6d93af99e3f01376e092fe985cb9122403ea3e47adf08b71e5014

Analysis

max time kernel
140s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
30-09-2024 13:06

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General

Target

uninst.exe
Size

25KB
MD5

a4e70a9dc4f4c6342bee1a37f6d572cc
SHA1

cda78cbc2ea9fdfc75ccb2d54c744afbc2085f7c
SHA256

b94f1ae51986f19541d74f3b82b642e913b1bbaa11c9c6792172bc25b44f43d3
SHA512

c45ff95096f7b78ae17dc3cc5ad801e5a687980fe6663cc9a17c4cf658e1e31e355d91a0782c134750db6ba6e78de224dbcb0fdae6b7335f9d306d28e7daa8b0
SSDEEP

384:AOlOQjVw9ka2Bt8TM6lK0KsGFqP3dx1/Vby7HvCQD3FS9ZVKl67vb4:AuOow9UBqw4k23DdITC41SJKU7vb4

Score

7^/10

discovery upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2052	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
2052	Au_.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral10/memory/1828-0-0x0000000000400000-0x0000000000434000-memory.dmp	upx
behavioral10/files/0x00070000000234aa-4.dat	upx
behavioral10/memory/1828-7-0x0000000000400000-0x0000000000434000-memory.dmp	upx
behavioral10/memory/2052-10-0x0000000000400000-0x0000000000434000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uninst.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1828 wrote to memory of 2052	1828	uninst.exe	82
PID 1828 wrote to memory of 2052	1828	uninst.exe	82
PID 1828 wrote to memory of 2052	1828	uninst.exe	82

C:\Users\Admin\AppData\Local\Temp\uninst.exe
"C:\Users\Admin\AppData\Local\Temp\uninst.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1828
- 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⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2052

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

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
25KB

MD5
a4e70a9dc4f4c6342bee1a37f6d572cc

SHA1
cda78cbc2ea9fdfc75ccb2d54c744afbc2085f7c

SHA256
b94f1ae51986f19541d74f3b82b642e913b1bbaa11c9c6792172bc25b44f43d3

SHA512
c45ff95096f7b78ae17dc3cc5ad801e5a687980fe6663cc9a17c4cf658e1e31e355d91a0782c134750db6ba6e78de224dbcb0fdae6b7335f9d306d28e7daa8b0

Download Submit
memory/1828-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1828-7-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2052-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download