05de6d351d50b64d5370fa6acb1734b83dbe782ba16215c5da9ae684b99c0261

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
09/09/2024, 03:43

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General

Target

2024-09-09_e0a18d1bb58e0963423466dcd98ba70f_cryptolocker.exe
Size

45KB
MD5

e0a18d1bb58e0963423466dcd98ba70f
SHA1

94c7417ac0a2f163761a7c870b090f1b21cbb0e2
SHA256

05de6d351d50b64d5370fa6acb1734b83dbe782ba16215c5da9ae684b99c0261
SHA512

5bc0ed4779be0992a4499945aea691a1c18dc77c602ab6f5ce19279d5b97a9e6cc8a83420fa5fe8ce19d65b45042f645de32b556abd1e417522ab96c6b686988
SSDEEP

768:bODOw9UiamWUB2preAr+OfjH/0STX73OBqRl:bODOw9acifH+YRl

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2080	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2204	2024-09-09_e0a18d1bb58e0963423466dcd98ba70f_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2204-0-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral1/files/0x00080000000120fb-11.dat	upx
behavioral1/memory/2204-15-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral1/memory/2080-16-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral1/memory/2080-26-0x0000000008000000-0x000000000800F000-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	2024-09-09_e0a18d1bb58e0963423466dcd98ba70f_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lossy.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 2080	2204	2024-09-09_e0a18d1bb58e0963423466dcd98ba70f_cryptolocker.exe	30
PID 2204 wrote to memory of 2080	2204	2024-09-09_e0a18d1bb58e0963423466dcd98ba70f_cryptolocker.exe	30
PID 2204 wrote to memory of 2080	2204	2024-09-09_e0a18d1bb58e0963423466dcd98ba70f_cryptolocker.exe	30
PID 2204 wrote to memory of 2080	2204	2024-09-09_e0a18d1bb58e0963423466dcd98ba70f_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-09_e0a18d1bb58e0963423466dcd98ba70f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-09_e0a18d1bb58e0963423466dcd98ba70f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2080

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\lossy.exe

Filesize
45KB

MD5
7db55370f104a71f21464621f9972491

SHA1
f143f6f3efdfbc41721c6865d637cb990b7cda1d

SHA256
7799f0868a2b47d7e03e1d28b0750457c1333d0c35eed9d15cccb299bcd6f74b

SHA512
ce3bb55486a55b0fc0e2ede19cf2b026797f7006f133cb488d32704f60720832a28f7747c325526b6d153714f3e3478fb8b5bfaffeb08abc653f9bb39c9a01f3

Download Submit
memory/2080-16-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/2080-18-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2080-25-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2080-26-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/2204-0-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/2204-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2204-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2204-3-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2204-15-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download