524b95e08e2eb578adf05bcf6e91c2aeeb6b49ac9aba7c5ef3d7ab7402ad2e7e

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
16/05/2024, 22:20

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

524b95e08e2eb578adf05bcf6e91c2aeeb6b49ac9aba7c5ef3d7ab7402ad2e7e.exe
Size

24KB
MD5

3f75230eb7506c943fb4036364c561ec
SHA1

0632b2d9218c655cf6d5cde84bbc8e6c9ababe51
SHA256

524b95e08e2eb578adf05bcf6e91c2aeeb6b49ac9aba7c5ef3d7ab7402ad2e7e
SHA512

52124aaf27a1b92edfd1ecc57591e313b5b2f3fabfc61c7141c38a4e5c2918d01411adad0451f777297a96eb39b8530050cc5a161b69f6adc882ff0322592207
SSDEEP

384:bVCPwFRuFn65arz1ZhdaXFXSCVQTLfjDp6HMmHu:bVCPwFRo6CpwXFXSqQXfjAsmHu

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/628-0-0x0000000008000000-0x000000000800E000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x00080000000233bb-13.dat	CryptoLocker_rule2
behavioral2/memory/628-16-0x0000000008000000-0x000000000800E000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1912-18-0x0000000008000000-0x000000000800E000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1912-27-0x0000000008000000-0x000000000800E000-memory.dmp	CryptoLocker_rule2

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral2/memory/628-0-0x0000000008000000-0x000000000800E000-memory.dmp	UPX
behavioral2/files/0x00080000000233bb-13.dat	UPX
behavioral2/memory/628-16-0x0000000008000000-0x000000000800E000-memory.dmp	UPX
behavioral2/memory/1912-18-0x0000000008000000-0x000000000800E000-memory.dmp	UPX
behavioral2/memory/1912-27-0x0000000008000000-0x000000000800E000-memory.dmp	UPX

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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	524b95e08e2eb578adf05bcf6e91c2aeeb6b49ac9aba7c5ef3d7ab7402ad2e7e.exe

Executes dropped EXE 1 IoCs

pid	Process
1912	hasfj.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/628-0-0x0000000008000000-0x000000000800E000-memory.dmp	upx
behavioral2/files/0x00080000000233bb-13.dat	upx
behavioral2/memory/628-16-0x0000000008000000-0x000000000800E000-memory.dmp	upx
behavioral2/memory/1912-18-0x0000000008000000-0x000000000800E000-memory.dmp	upx
behavioral2/memory/1912-27-0x0000000008000000-0x000000000800E000-memory.dmp	upx

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 628 wrote to memory of 1912	628	524b95e08e2eb578adf05bcf6e91c2aeeb6b49ac9aba7c5ef3d7ab7402ad2e7e.exe	82
PID 628 wrote to memory of 1912	628	524b95e08e2eb578adf05bcf6e91c2aeeb6b49ac9aba7c5ef3d7ab7402ad2e7e.exe	82
PID 628 wrote to memory of 1912	628	524b95e08e2eb578adf05bcf6e91c2aeeb6b49ac9aba7c5ef3d7ab7402ad2e7e.exe	82

C:\Users\Admin\AppData\Local\Temp\524b95e08e2eb578adf05bcf6e91c2aeeb6b49ac9aba7c5ef3d7ab7402ad2e7e.exe
"C:\Users\Admin\AppData\Local\Temp\524b95e08e2eb578adf05bcf6e91c2aeeb6b49ac9aba7c5ef3d7ab7402ad2e7e.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:628
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1912

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
24KB

MD5
0fd1c41d58f581c6d362b0fcc5120fd4

SHA1
deb73e66deff2fd26158da2cded7c153de3c9957

SHA256
4b5c47ed17debc60144bff2faa267b2c53bed46f5fca1109e0ac9de70fe53a1e

SHA512
3fae71147d86aec5ff9f08cf8d5896994211d3b559bcaf7def6e39254c1fa7940b6da8e504db1832e08db731ca7011b79e570b15e4eba45136f88615a83b5d13

Download Submit
memory/628-0-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download
memory/628-1-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/628-2-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/628-9-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/628-16-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download
memory/1912-18-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download
memory/1912-26-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/1912-27-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download