0c9ac84707414e8371be593b5413c0fd92ae60f29283b668a383080e560f79a4

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
23/08/2023, 15:47

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General

Target

762d5243a4d445582bd6f0c7e10efe7d_cryptolocker_JC.exe
Size

59KB
MD5

762d5243a4d445582bd6f0c7e10efe7d
SHA1

11907ee9c30bff2c5a51dc98e00db344b97ced78
SHA256

0c9ac84707414e8371be593b5413c0fd92ae60f29283b668a383080e560f79a4
SHA512

daa3e17085b9d8edd2ded09dc52789948e59ed8f97198b2dfd0d43a1b26c3272650eeff334bae13a6b4aab60d3ed5f2243bd2bbc885544c1dade68f046bbcf6b
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudTYTjipvF2oqQ:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7Q

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2988	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2580	762d5243a4d445582bd6f0c7e10efe7d_cryptolocker_JC.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
2580	762d5243a4d445582bd6f0c7e10efe7d_cryptolocker_JC.exe
2988	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2580 wrote to memory of 2988	2580	762d5243a4d445582bd6f0c7e10efe7d_cryptolocker_JC.exe	28
PID 2580 wrote to memory of 2988	2580	762d5243a4d445582bd6f0c7e10efe7d_cryptolocker_JC.exe	28
PID 2580 wrote to memory of 2988	2580	762d5243a4d445582bd6f0c7e10efe7d_cryptolocker_JC.exe	28
PID 2580 wrote to memory of 2988	2580	762d5243a4d445582bd6f0c7e10efe7d_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\762d5243a4d445582bd6f0c7e10efe7d_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\762d5243a4d445582bd6f0c7e10efe7d_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2580
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2988

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

C:\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
59KB

MD5
5ea5e070d555912119d577049afbec16

SHA1
f442297a94b23b25a93b50d334040d40af20af6d

SHA256
2bd36d31c3ff5c1a210ae5f2d4cab18b4e1f872812cf43bfa121d0c9296d6580

SHA512
373767c498b871d2730110cb9e6b206e190b2d8a6de607f40a3fdef14d8d79b8550c425b5f52b7e10be81c15e75b592c98e2e98c6ce486d7d3ca06c1ffe2e576

Download Submit
C:\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
59KB

MD5
5ea5e070d555912119d577049afbec16

SHA1
f442297a94b23b25a93b50d334040d40af20af6d

SHA256
2bd36d31c3ff5c1a210ae5f2d4cab18b4e1f872812cf43bfa121d0c9296d6580

SHA512
373767c498b871d2730110cb9e6b206e190b2d8a6de607f40a3fdef14d8d79b8550c425b5f52b7e10be81c15e75b592c98e2e98c6ce486d7d3ca06c1ffe2e576

Download Submit
\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
59KB

MD5
5ea5e070d555912119d577049afbec16

SHA1
f442297a94b23b25a93b50d334040d40af20af6d

SHA256
2bd36d31c3ff5c1a210ae5f2d4cab18b4e1f872812cf43bfa121d0c9296d6580

SHA512
373767c498b871d2730110cb9e6b206e190b2d8a6de607f40a3fdef14d8d79b8550c425b5f52b7e10be81c15e75b592c98e2e98c6ce486d7d3ca06c1ffe2e576

Download Submit
memory/2580-0-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2580-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2580-1-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2988-16-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download