41c5e8831c6fbfd670193381f338867ce52c5f0806e3f22bffa5e16a25b18e6a

Analysis

max time kernel
141s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20/11/2024, 05:25

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General

Target

2024-11-20_80e28cb91858e9d74e37e0c0829676e8_cryptolocker.exe
Size

40KB
MD5

80e28cb91858e9d74e37e0c0829676e8
SHA1

0b42dde28db518dff1c0638991d4a1e47c3b6bf4
SHA256

41c5e8831c6fbfd670193381f338867ce52c5f0806e3f22bffa5e16a25b18e6a
SHA512

cdd1e58d5a89b272564fcd52d8911fc29235838dfa4aab30c38ad8dbda10458b679c2332c39f365a5c17e75a8df734c6749fb81fee7314baacb05846b20d69d2
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYabDNHu:qDdFJy3QMOtEvwDpjjWMl7TdVO

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2212	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2492	2024-11-20_80e28cb91858e9d74e37e0c0829676e8_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2492-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00090000000122ea-11.dat	upx
behavioral1/memory/2492-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2212-26-0x0000000000500000-0x0000000000510000-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	2024-11-20_80e28cb91858e9d74e37e0c0829676e8_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2492 wrote to memory of 2212	2492	2024-11-20_80e28cb91858e9d74e37e0c0829676e8_cryptolocker.exe	31
PID 2492 wrote to memory of 2212	2492	2024-11-20_80e28cb91858e9d74e37e0c0829676e8_cryptolocker.exe	31
PID 2492 wrote to memory of 2212	2492	2024-11-20_80e28cb91858e9d74e37e0c0829676e8_cryptolocker.exe	31
PID 2492 wrote to memory of 2212	2492	2024-11-20_80e28cb91858e9d74e37e0c0829676e8_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-11-20_80e28cb91858e9d74e37e0c0829676e8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-20_80e28cb91858e9d74e37e0c0829676e8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2492
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2212

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

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
40KB

MD5
337bc516c4b98d16ddb37c1ec3259574

SHA1
2ad5e1ae06ee46f5cfc5c86333d4eff17f79b536

SHA256
14620047d142873b171aa65bb18feba69121795b2204a5e74e38d49782c0a667

SHA512
c9c04d73ebea0f1315db8eb6d0af38841d8440169b90231e9596ca413fa88a6de9c9c7fed3c34416007a5f1036951a430ced685128f0cf34df93103309db4f04

Download Submit
memory/2212-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2212-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2492-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2492-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2492-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2492-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2492-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download