dd2db9f9984b402f1597fba0fabcd4940937fcd9ee060f289f72e0547b6a4b53

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
09-05-2024 15:43

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General

Target

2024-05-09_cb465ed4595a5b6393834f7c465783fe_cryptolocker.exe
Size

64KB
MD5

cb465ed4595a5b6393834f7c465783fe
SHA1

eb3f83665aaa567b9142e5142ef0658a99521d24
SHA256

dd2db9f9984b402f1597fba0fabcd4940937fcd9ee060f289f72e0547b6a4b53
SHA512

493c0fc7b044b1b4c4be04cbbeb8f5f6efed3b794f2432731d89aec96d944f8e899cddbb209de7fa952de92c3263a6ea456310b1fcf19fb87f30824a2b7b4521
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHaxYX:btng54SMLr+/AO/kIhfoKMHdPe

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000014713-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2980	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1732	2024-05-09_cb465ed4595a5b6393834f7c465783fe_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1732	2024-05-09_cb465ed4595a5b6393834f7c465783fe_cryptolocker.exe
2980	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 2980	1732	2024-05-09_cb465ed4595a5b6393834f7c465783fe_cryptolocker.exe	28
PID 1732 wrote to memory of 2980	1732	2024-05-09_cb465ed4595a5b6393834f7c465783fe_cryptolocker.exe	28
PID 1732 wrote to memory of 2980	1732	2024-05-09_cb465ed4595a5b6393834f7c465783fe_cryptolocker.exe	28
PID 1732 wrote to memory of 2980	1732	2024-05-09_cb465ed4595a5b6393834f7c465783fe_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-09_cb465ed4595a5b6393834f7c465783fe_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_cb465ed4595a5b6393834f7c465783fe_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2980

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
64KB

MD5
a71e6bcce911d44cc1f1ef09ebccee5d

SHA1
4f2f18c2958703ac90b6188234d07d144d192433

SHA256
3e969a1f4301707546c748967eb6087244928244c17f6e23cbf9489fbec7b8e2

SHA512
706ed02d8142cda4444b67c2a973fc0b8000afd3f6be9e5897ca894886eb40df2c234a4b925b31d6ba1b267809b67dcefe7bc8f151beecef47df98df3692157a

Download Submit
memory/1732-0-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/1732-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1732-8-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2980-23-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download