59bd0b5b6555ba269b2436ee41ce459e2d42bf3a7ceedf51eda20eb8cb527525

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08/09/2024, 06:22

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General

Target

2024-09-08_2a13b814a15ca8706156c70a9a0d41af_cryptolocker.exe
Size

45KB
MD5

2a13b814a15ca8706156c70a9a0d41af
SHA1

88a35184cc5cc495d3a93256648facb82fa28236
SHA256

59bd0b5b6555ba269b2436ee41ce459e2d42bf3a7ceedf51eda20eb8cb527525
SHA512

08cca60a1562227217e2f93a730e032cef01a7c8d9ca2fe6c59c92416a51f3532a8ee7ccb62492bb1f3c5abec05e2b724f93f24cb080318aa6cb282f2b3354c0
SSDEEP

768:bODOw9UiamWUB2preAr+OfjH/0STX73OBqK:bODOw9acifH+YK

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2824	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2096	2024-09-08_2a13b814a15ca8706156c70a9a0d41af_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2096-0-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral1/files/0x00080000000120ff-11.dat	upx
behavioral1/memory/2824-16-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral1/memory/2096-15-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral1/memory/2824-26-0x0000000008000000-0x000000000800F000-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	2024-09-08_2a13b814a15ca8706156c70a9a0d41af_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 2096 wrote to memory of 2824	2096	2024-09-08_2a13b814a15ca8706156c70a9a0d41af_cryptolocker.exe	30
PID 2096 wrote to memory of 2824	2096	2024-09-08_2a13b814a15ca8706156c70a9a0d41af_cryptolocker.exe	30
PID 2096 wrote to memory of 2824	2096	2024-09-08_2a13b814a15ca8706156c70a9a0d41af_cryptolocker.exe	30
PID 2096 wrote to memory of 2824	2096	2024-09-08_2a13b814a15ca8706156c70a9a0d41af_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-08_2a13b814a15ca8706156c70a9a0d41af_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-08_2a13b814a15ca8706156c70a9a0d41af_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2096
- 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:2824

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
46KB

MD5
295840369a20b5651a02e7b8bbc85a2a

SHA1
63e81265a991d736df598635e854555fb1aa3d97

SHA256
b65b9903c3ef3ca8cb94eac24c2c1ecce47fcc2366e88cfc166881380c579667

SHA512
339dad211ba55e9ea269766a2d4b7bfbc0217916bb5a41e20047a22523161b78e8a53db21fd76ada4d9683fbe897b59b9f2d97f46053a9f327d496be069b7473

Download Submit
memory/2096-0-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/2096-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2096-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2096-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2096-15-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/2824-16-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/2824-18-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2824-19-0x0000000001C90000-0x0000000001C96000-memory.dmp

Filesize
24KB

Download
memory/2824-26-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download