6271441533d0a874119eec49ced28aead97b0409553e03c387dcaed1f75cb3e3

Analysis

max time kernel
132s
max time network
139s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
05-09-2024 12:18

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General

Target

2024-09-05_ee199e20fe11ddd498a3f55445caeb41_cryptolocker.exe
Size

92KB
MD5

ee199e20fe11ddd498a3f55445caeb41
SHA1

d43dbb030d55cd2270433f3ece4cbdafd5c153b4
SHA256

6271441533d0a874119eec49ced28aead97b0409553e03c387dcaed1f75cb3e3
SHA512

a341dad15fc22f3b7c81eda1802e3a902ae6b1ad7e3f535a195ad029e731103ff0152c46a61ac6324458115c67edcf774d55e78c4cf08663aa11ab0fbbac205f
SSDEEP

1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAeR:n6a+1SEOtEvwDpjYYvQd2Pc

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2180	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1232	2024-09-05_ee199e20fe11ddd498a3f55445caeb41_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1232-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1232-14-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000700000001211b-11.dat	upx
behavioral1/memory/2180-25-0x0000000000500000-0x0000000000510000-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	2024-09-05_ee199e20fe11ddd498a3f55445caeb41_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 1232 wrote to memory of 2180	1232	2024-09-05_ee199e20fe11ddd498a3f55445caeb41_cryptolocker.exe	30
PID 1232 wrote to memory of 2180	1232	2024-09-05_ee199e20fe11ddd498a3f55445caeb41_cryptolocker.exe	30
PID 1232 wrote to memory of 2180	1232	2024-09-05_ee199e20fe11ddd498a3f55445caeb41_cryptolocker.exe	30
PID 1232 wrote to memory of 2180	1232	2024-09-05_ee199e20fe11ddd498a3f55445caeb41_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-05_ee199e20fe11ddd498a3f55445caeb41_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_ee199e20fe11ddd498a3f55445caeb41_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1232
- 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:2180

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

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

Filesize
93KB

MD5
3eeb241fc31ebf3b7c365d83b2a2c27f

SHA1
cfc3fdd50cfefe3cacdb762d90e1fae0de43a2e6

SHA256
eb91af17e16ac43c457af21eb1439212535c45051fe252902a0f4c2cf4a56d26

SHA512
e94b97f72af358eac4a293faec587d59e7ce53f68625bb35866401b74faeb7091d164c0aeffdc5661381b3a4b8bb32a235223a91a8b4d7e5119d57739c67e3dd

Download Submit
memory/1232-3-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/1232-2-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1232-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1232-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1232-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2180-17-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2180-24-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2180-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download