a2f4a9e8c476f700b17cc068984f351c25e9f32c0d31eb8653ff9ad3e6f95f23

Analysis

max time kernel
94s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01/09/2024, 23:31

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General

Target

$EXEDIR/uninstaller.exe
Size

687KB
MD5

69eabc398154c09986e1cda437986692
SHA1

15e3c3e2e395329e0a26279340b8e8333e76f0a1
SHA256

86b3eb6b909169c4271ead432be5018593144218c295f297efe3046bb3236924
SHA512

4b0860a944ff1715770401386fd5e21347f8ca23d5cb6fd562fd3c008e36770e1b39ac93d584dedc34d00cf9a43938e673dc6b3b95d4c5a9098019316b986031
SSDEEP

6144:HT4DtLUjD5Ryukgz95+W5m7sFo3SobRE3LWKtsm4NTY:HTyUjD5RB95+B7a2SoEWKtsm45Y

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4100	Un_A.exe

Loads dropped DLL 1 IoCs

pid	Process
4100	Un_A.exe

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	uninstaller.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Un_A.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3724 wrote to memory of 4100	3724	uninstaller.exe	82
PID 3724 wrote to memory of 4100	3724	uninstaller.exe	82
PID 3724 wrote to memory of 4100	3724	uninstaller.exe	82

C:\Users\Admin\AppData\Local\Temp\$EXEDIR\uninstaller.exe
"C:\Users\Admin\AppData\Local\Temp\$EXEDIR\uninstaller.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3724
- 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\$EXEDIR\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:4100

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\nsf6032.tmp\System.dll

Filesize
22KB

MD5
b361682fa5e6a1906e754cfa08aa8d90

SHA1
c6701aee0c866565de1b7c1f81fd88da56b395d3

SHA256
b711c4f17690421c9dc8ddb9ed5a9ddc539b3a28f11e19c851e25dcfc7701c04

SHA512
2778f91c9bcf83277d26c71118a1ccb0fb3ce50e89729f14f4915bc65dd48503a77b1e5118ce774dea72f5ce3cc8681eb9ca3c55cf90e9f61a177101ba192ae9

Download Submit
C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe

Filesize
687KB

MD5
69eabc398154c09986e1cda437986692

SHA1
15e3c3e2e395329e0a26279340b8e8333e76f0a1

SHA256
86b3eb6b909169c4271ead432be5018593144218c295f297efe3046bb3236924

SHA512
4b0860a944ff1715770401386fd5e21347f8ca23d5cb6fd562fd3c008e36770e1b39ac93d584dedc34d00cf9a43938e673dc6b3b95d4c5a9098019316b986031

Download Submit