d78125652605de0851a927985594c22c5f9c49a334ba20a3e9ba414c4df6269c

Analysis

max time kernel
132s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09/10/2024, 04:24

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General

Target

2024-10-09_12454330717e2aa1a2815cba88c59c65_cryptolocker.exe
Size

53KB
MD5

12454330717e2aa1a2815cba88c59c65
SHA1

f3c697ebd3a081f8db70c0fa5f15f155de41e512
SHA256

d78125652605de0851a927985594c22c5f9c49a334ba20a3e9ba414c4df6269c
SHA512

2622f385928f36c4f5c571ad819d94249347ecccc73939258dcdd78236019dbe35f9ce6e6e5f7d880fd97d32825e6eca1522f74a96ba8d960ac1ac6eef0c1d2a
SSDEEP

768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YY1J+OTOmo:z6QFElP6n+gKmddpMOtEvwDpj31imo

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2348	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2092	2024-10-09_12454330717e2aa1a2815cba88c59c65_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2092-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2092-14-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0007000000012117-15.dat	upx
behavioral1/memory/2348-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2348-26-0x0000000000500000-0x0000000000510000-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	2024-10-09_12454330717e2aa1a2815cba88c59c65_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 2092 wrote to memory of 2348	2092	2024-10-09_12454330717e2aa1a2815cba88c59c65_cryptolocker.exe	30
PID 2092 wrote to memory of 2348	2092	2024-10-09_12454330717e2aa1a2815cba88c59c65_cryptolocker.exe	30
PID 2092 wrote to memory of 2348	2092	2024-10-09_12454330717e2aa1a2815cba88c59c65_cryptolocker.exe	30
PID 2092 wrote to memory of 2348	2092	2024-10-09_12454330717e2aa1a2815cba88c59c65_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-09_12454330717e2aa1a2815cba88c59c65_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-09_12454330717e2aa1a2815cba88c59c65_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2092
- 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:2348

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
54KB

MD5
80e63462f4eea1a2b7b919b8e31083f9

SHA1
f9a0dcccce038cbc33ed1c4b5e8f19f6397d5af1

SHA256
b0cdc9a1c9a7aeed8c7ac45c3f79f2a6afa8b1ecd5678b710ae78a2601237a55

SHA512
4c96637e72f984c7288924d7fe60a4e7ed13b32ce85622eca56930eed1a6b15d8e9fcd7a31d70bce5b2a31e7bbf08fb4c0bcb029cd6c11c5b801d4bdf9fa6da2

Download Submit
memory/2092-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2092-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2092-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2092-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2092-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2348-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2348-18-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2348-25-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2348-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download