76067070bab280a36882fdb7bb7d7b79498d1f060c2da51e17833b94b19acb21

Analysis

max time kernel
103s
max time network
16s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
13/08/2024, 18:42

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General

Target

Uninstall.exe
Size

169KB
MD5

a4c226a39904b24f10cd73f23778ed1d
SHA1

962e04f6548d8de6f30dc0db7a2f845c0eccd751
SHA256

e005a949bd3833d99afc398db01b9b879f95b4075c8ae8dea2cdf662ab06de5c
SHA512

ce45e6c897410a867740d569427a612f39731774d2f5e3707c012405f7585b02b3d719b5f6d0cce9e56e5af342efe59c17c41c42cc0593bfa265cb7a277dee79
SSDEEP

3072:Pde3GHdi4uoF8cyVIhf6DJzRZBYDp0GS1YH2tv/h5bTLDcc:PgsdcDJXIHEvJ5/N

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2404	Un_A.exe

Loads dropped DLL 3 IoCs

pid	Process
3012	Uninstall.exe
2404	Un_A.exe
2404	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	Uninstall.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Un_A.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral11/files/0x000300000001ced9-2.dat	nsis_installer_1
behavioral11/files/0x000300000001ced9-2.dat	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2404	Un_A.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3012 wrote to memory of 2404	3012	Uninstall.exe	29
PID 3012 wrote to memory of 2404	3012	Uninstall.exe	29
PID 3012 wrote to memory of 2404	3012	Uninstall.exe	29
PID 3012 wrote to memory of 2404	3012	Uninstall.exe	29

C:\Users\Admin\AppData\Local\Temp\Uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\Uninstall.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3012
- 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\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2404

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

\Users\Admin\AppData\Local\Temp\nso1A45.tmp\UserInfo.dll

Filesize
4KB

MD5
acbda33dd5700c122e2fe48e3d4351fd

SHA1
2c154baf7c64052ee712b7cdf9c36b7697dd3fc8

SHA256
943b33829f9013e4d361482a5c8981ba20a7155c78691dbe02a8f8cd2a02efa0

SHA512
d090adf65a74ac5b910b18bb67e989714335e7b4778cd771cff154d7186351a1bebbc7103cca849bdfa2709c991947ffff6c1d8fdf16a74f4dfb614bce3ff6fd

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

Filesize
169KB

MD5
a4c226a39904b24f10cd73f23778ed1d

SHA1
962e04f6548d8de6f30dc0db7a2f845c0eccd751

SHA256
e005a949bd3833d99afc398db01b9b879f95b4075c8ae8dea2cdf662ab06de5c

SHA512
ce45e6c897410a867740d569427a612f39731774d2f5e3707c012405f7585b02b3d719b5f6d0cce9e56e5af342efe59c17c41c42cc0593bfa265cb7a277dee79

Download Submit