ce70c01a87fda86dfaee316c3950c092d799e7fbbd6c7ca129da3081f1aafec2

Analysis

max time kernel
118s
max time network
122s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14/02/2024, 04:02

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General

Target

2024-02-14_8d569974b0b3b8444ddc4ff4db735658_cryptolocker.exe
Size

60KB
MD5

8d569974b0b3b8444ddc4ff4db735658
SHA1

9e61dbcabbb3fb38272276bb9dbd19ad85503685
SHA256

ce70c01a87fda86dfaee316c3950c092d799e7fbbd6c7ca129da3081f1aafec2
SHA512

cbe124215b5100570677c3d188d161fc44d2a683f2e7d148185383208a4dd48d6ce647b52162f56a05bdd829d3b01e0a9ca36627c9c12a48e80e9186b434f7c3
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHNY:btng54SMLr+/AO/kIhfoKMHdj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000131eb-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2448	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1736	2024-02-14_8d569974b0b3b8444ddc4ff4db735658_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
1736	2024-02-14_8d569974b0b3b8444ddc4ff4db735658_cryptolocker.exe
2448	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 2448	1736	2024-02-14_8d569974b0b3b8444ddc4ff4db735658_cryptolocker.exe	28
PID 1736 wrote to memory of 2448	1736	2024-02-14_8d569974b0b3b8444ddc4ff4db735658_cryptolocker.exe	28
PID 1736 wrote to memory of 2448	1736	2024-02-14_8d569974b0b3b8444ddc4ff4db735658_cryptolocker.exe	28
PID 1736 wrote to memory of 2448	1736	2024-02-14_8d569974b0b3b8444ddc4ff4db735658_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-14_8d569974b0b3b8444ddc4ff4db735658_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_8d569974b0b3b8444ddc4ff4db735658_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1736
- 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:2448

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
61KB

MD5
88b6981e32d7ed9c47397157ff4697fb

SHA1
cdc3e60dea5082d8130fbb625d12c5f528e01313

SHA256
b5b48bb91467b8ed0d13c364c51fe14b7e7f96102a8736a0591421a791bb4c98

SHA512
b1ece2ff649ef01fd612852fcb3ba692ccc6babb6416bb1fd8432f98b1eff77fa9e6e6b9e40e5715682bee5df99ece39f2684c5a6e42775afe5d2593cbd5237c

Download Submit
memory/1736-0-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/1736-2-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/1736-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2448-21-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download