81eeb786547c3879be6b39e4173b3376f63a8bafba57772fc30d3b947bfbba7f

Analysis

max time kernel
131s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15/10/2024, 03:48

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General

Target

2024-10-15_ad88816bf7909042079d32a09d2537fb_cryptolocker.exe
Size

63KB
MD5

ad88816bf7909042079d32a09d2537fb
SHA1

215f6ccec693487f9a21f8402e392b667ddaffe5
SHA256

81eeb786547c3879be6b39e4173b3376f63a8bafba57772fc30d3b947bfbba7f
SHA512

5cef0f2d6c6d6d49eb40ba5dca46530f832412a0c021eb872d529439c6ba9d6d0bb9199f57490fdf40e8754f74e4cfa50e5e893073234064fcaa50d7ef2ccf63
SSDEEP

768:P8mnjO6LsoEEeegiZPvEhHSG+gbum/kLyMro2GtOOtEvwDpjKvWxHCbSVaFn0jKG:P8mnK6QFElP6n+gymddpMOtEvwDpjYM1

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3056	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1832	2024-10-15_ad88816bf7909042079d32a09d2537fb_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1832-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/files/0x0007000000012118-15.dat	upx
behavioral1/memory/1832-14-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/memory/3056-16-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/memory/3056-26-0x0000000000500000-0x000000000050F311-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	2024-10-15_ad88816bf7909042079d32a09d2537fb_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 1832 wrote to memory of 3056	1832	2024-10-15_ad88816bf7909042079d32a09d2537fb_cryptolocker.exe	31
PID 1832 wrote to memory of 3056	1832	2024-10-15_ad88816bf7909042079d32a09d2537fb_cryptolocker.exe	31
PID 1832 wrote to memory of 3056	1832	2024-10-15_ad88816bf7909042079d32a09d2537fb_cryptolocker.exe	31
PID 1832 wrote to memory of 3056	1832	2024-10-15_ad88816bf7909042079d32a09d2537fb_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-10-15_ad88816bf7909042079d32a09d2537fb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-15_ad88816bf7909042079d32a09d2537fb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1832
- 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:3056

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

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

Filesize
64KB

MD5
19c519786debaefb53f1f8ea278f140a

SHA1
3c0c15cb82e8d3bc4aa8ae7d5a75b669f9ac4b8d

SHA256
dbe19720b609d2c82bf0ea3b4fbf8cf90ddd69194a7a602b7f1898323d9e33db

SHA512
5c00c179532e14f3c2117edf45a12190ad5e7ef042be190e8dc6cafb56f664c10c40691312ea63a8268bf655e48c9b10fc3ea254e4c412ac401724cd0dcf3f6d

Download Submit
memory/1832-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/1832-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1832-2-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/1832-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1832-14-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/3056-16-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/3056-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3056-18-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/3056-26-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download