fd076819d074287d774b4a35f2ef802ff0d16de435e9b125832237f019487ac9

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
03/09/2023, 14:07

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General

Target

2023-08-22_eed8da070275c631df3f11555c8f6bb5_cryptolocker_JC.exe
Size

59KB
MD5

eed8da070275c631df3f11555c8f6bb5
SHA1

461e3c191d8867768621bfe853e67adb56820f8b
SHA256

fd076819d074287d774b4a35f2ef802ff0d16de435e9b125832237f019487ac9
SHA512

03da5fad59f2f3c289a40f544adc0654c26c27462eab7aa16471f7ed6267df3ede8f27631e4591ecd411f0ae852ffa2aff42b5a4ca5df2257bf1b22f962a0f5a
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF29z:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7R

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1420	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
3016	2023-08-22_eed8da070275c631df3f11555c8f6bb5_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
3016	2023-08-22_eed8da070275c631df3f11555c8f6bb5_cryptolocker_JC.exe
1420	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 1420	3016	2023-08-22_eed8da070275c631df3f11555c8f6bb5_cryptolocker_JC.exe	28
PID 3016 wrote to memory of 1420	3016	2023-08-22_eed8da070275c631df3f11555c8f6bb5_cryptolocker_JC.exe	28
PID 3016 wrote to memory of 1420	3016	2023-08-22_eed8da070275c631df3f11555c8f6bb5_cryptolocker_JC.exe	28
PID 3016 wrote to memory of 1420	3016	2023-08-22_eed8da070275c631df3f11555c8f6bb5_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\2023-08-22_eed8da070275c631df3f11555c8f6bb5_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\2023-08-22_eed8da070275c631df3f11555c8f6bb5_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3016
- 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:1420

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
79cdcc66deae946b2b227491c5bf7517

SHA1
df6ba1da67303cc1c9545e49ddfbba6c6d170e34

SHA256
119b9c31b84e7a15b07929cd6e06b4b5de692a519fc0d868b96143c2fa1a55ce

SHA512
ff7efbe4e3a04e87f656a40ad67ab750649a60486f27334c71288dd42496b9d47404768fb24f8741c1fa75f625b19388d34e9f55a19f0e4854c016300a7bf7f1

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

Filesize
59KB

MD5
79cdcc66deae946b2b227491c5bf7517

SHA1
df6ba1da67303cc1c9545e49ddfbba6c6d170e34

SHA256
119b9c31b84e7a15b07929cd6e06b4b5de692a519fc0d868b96143c2fa1a55ce

SHA512
ff7efbe4e3a04e87f656a40ad67ab750649a60486f27334c71288dd42496b9d47404768fb24f8741c1fa75f625b19388d34e9f55a19f0e4854c016300a7bf7f1

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

Filesize
59KB

MD5
79cdcc66deae946b2b227491c5bf7517

SHA1
df6ba1da67303cc1c9545e49ddfbba6c6d170e34

SHA256
119b9c31b84e7a15b07929cd6e06b4b5de692a519fc0d868b96143c2fa1a55ce

SHA512
ff7efbe4e3a04e87f656a40ad67ab750649a60486f27334c71288dd42496b9d47404768fb24f8741c1fa75f625b19388d34e9f55a19f0e4854c016300a7bf7f1

Download Submit
memory/3016-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/3016-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3016-3-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download