3ba451c5d1a4a424917a0f3a9ecb7aa7d037f5452113fc8439822b9a073d6966

Analysis

max time kernel
141s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13/10/2024, 03:45

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General

Target

2024-10-13_616933fbc971239f1355f44e37957091_cryptolocker.exe
Size

36KB
MD5

616933fbc971239f1355f44e37957091
SHA1

88631f569cf8bf86d739d96099894850da0eba95
SHA256

3ba451c5d1a4a424917a0f3a9ecb7aa7d037f5452113fc8439822b9a073d6966
SHA512

18c094c8f5d9d54f73f09d2f4eb89fa22d4bf17b6c922c5342937ac6f1bfe39ecc649799c3e753f1cc33622a30fa9652960e63fc3bc3261c485d8e1dc5ff3188
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT6y:qDdFJy3QMOtEvwDpjjWMl7T6y

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2528	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2160	2024-10-13_616933fbc971239f1355f44e37957091_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2160-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000a000000012033-11.dat	upx
behavioral1/memory/2160-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2528-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2528-27-0x0000000000500000-0x0000000000510000-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	2024-10-13_616933fbc971239f1355f44e37957091_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 2160 wrote to memory of 2528	2160	2024-10-13_616933fbc971239f1355f44e37957091_cryptolocker.exe	30
PID 2160 wrote to memory of 2528	2160	2024-10-13_616933fbc971239f1355f44e37957091_cryptolocker.exe	30
PID 2160 wrote to memory of 2528	2160	2024-10-13_616933fbc971239f1355f44e37957091_cryptolocker.exe	30
PID 2160 wrote to memory of 2528	2160	2024-10-13_616933fbc971239f1355f44e37957091_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-13_616933fbc971239f1355f44e37957091_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-13_616933fbc971239f1355f44e37957091_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2160
- 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:2528

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
37KB

MD5
49e15a9010d3a9d465a70aa8ebb6b6be

SHA1
75e40926eb9c17d9fd982f0b4cb694703e6be679

SHA256
b33d5a9dba5381c2dbf8c34fe0c4b1e511dbb886ef4af65e09b780b5773d624c

SHA512
1880a8217402bb876a1af7814e610b23aa19ebdb023cdbdc195634f41e1fba99169be3e3fc02e820a6d76f3bc66397f5e46be26ae3b91913970d4ed5afa0856c

Download Submit
memory/2160-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2160-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2160-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2160-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2160-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2160-14-0x0000000002260000-0x0000000002270000-memory.dmp

Filesize
64KB

Download
memory/2528-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2528-20-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2528-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download