15368f5d2fdbd1324643ca21de570827aa27a9c730d27a74a5fe1dae29e90180

Analysis

max time kernel
120s
max time network
111s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
27-07-2024 07:37

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General

Target

a934df4f5b2760aec8fd9a830f04ca40N.exe
Size

51KB
MD5

a934df4f5b2760aec8fd9a830f04ca40
SHA1

59cacd924ee694d146cf0bd62ea08e5109f5c1ec
SHA256

15368f5d2fdbd1324643ca21de570827aa27a9c730d27a74a5fe1dae29e90180
SHA512

2a39e38744eade51477c96fb16ec959b3185bd0d8655dbf150c188fc657bc3933b6f34c9169f374d2703f4e0f0bf4cb5f7540cdf36b0fc7742a4a665b2d3ccf6
SSDEEP

768:exwhM/tqZKgVuz1NmnbcuyD7Uf54Ak12M5ezNG/2rb7vqV7Nd:exkAGnVE1Nmnouy8B4ZUGezN/jqVRd

Score

7^/10

discovery upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000\Control Panel\International\Geo\Nation	a934df4f5b2760aec8fd9a830f04ca40N.exe

Executes dropped EXE 1 IoCs

pid	Process
3188	wujek.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/208-0-0x0000000000400000-0x000000000040C000-memory.dmp	upx
behavioral2/files/0x0002000000022a92-6.dat	upx
behavioral2/memory/3188-10-0x0000000000400000-0x000000000040C000-memory.dmp	upx
behavioral2/memory/3188-11-0x0000000000400000-0x000000000040C000-memory.dmp	upx
behavioral2/memory/208-12-0x0000000000400000-0x000000000040C000-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	a934df4f5b2760aec8fd9a830f04ca40N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wujek.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 208 wrote to memory of 3188	208	a934df4f5b2760aec8fd9a830f04ca40N.exe	87
PID 208 wrote to memory of 3188	208	a934df4f5b2760aec8fd9a830f04ca40N.exe	87
PID 208 wrote to memory of 3188	208	a934df4f5b2760aec8fd9a830f04ca40N.exe	87

C:\Users\Admin\AppData\Local\Temp\a934df4f5b2760aec8fd9a830f04ca40N.exe
"C:\Users\Admin\AppData\Local\Temp\a934df4f5b2760aec8fd9a830f04ca40N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:208
- C:\Users\Admin\AppData\Local\Temp\wujek.exe
  "C:\Users\Admin\AppData\Local\Temp\wujek.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3188

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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\wujek.exe

Filesize
52KB

MD5
cf09764c83bc6f044aa34f9cdecd5372

SHA1
714a7cc15996388e788ef07cf0b73972b97d09ef

SHA256
e52f81d99e14b399a684d3b96e7f1a955e58f74c0b944af598ae900d13caa9c1

SHA512
c674359fedb77fd514e5d1afb5dc891f2b5320afd43e1635abee4406484e232da928b21d67bbdef5cdde5324cbe8449780b041760d5a4b60fee2ce70c269d58b

Download Submit
memory/208-0-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/208-1-0x0000000000403000-0x0000000000404000-memory.dmp

Filesize
4KB

Download
memory/208-12-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3188-10-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3188-11-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download