834a7e1fe6f21ed7d6957667e374c239a45c53dca406f1adbbe0fd219ac33cb1

Analysis

max time kernel
150s
max time network
155s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
06/08/2023, 10:39

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General

Target

80b019780e0d730bf212487a3260f8cd_cryptolocker_JC.exe
Size

30KB
MD5

80b019780e0d730bf212487a3260f8cd
SHA1

387b7e21c73d97a961b4068eb161966554e5d636
SHA256

834a7e1fe6f21ed7d6957667e374c239a45c53dca406f1adbbe0fd219ac33cb1
SHA512

dca9d7342a0ec71bf54951859962f2d4e48529043d538fa4dce8860d467f4b3b70a6f46d98e69d431e5d61ecda7ab218589ca60f13efe6d84535a699d1dbe9b8
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzo2E:b7o/2n1TCraU6GD1a4XC

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1632	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2456	80b019780e0d730bf212487a3260f8cd_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
2456	80b019780e0d730bf212487a3260f8cd_cryptolocker_JC.exe
1632	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2456 wrote to memory of 1632	2456	80b019780e0d730bf212487a3260f8cd_cryptolocker_JC.exe	28
PID 2456 wrote to memory of 1632	2456	80b019780e0d730bf212487a3260f8cd_cryptolocker_JC.exe	28
PID 2456 wrote to memory of 1632	2456	80b019780e0d730bf212487a3260f8cd_cryptolocker_JC.exe	28
PID 2456 wrote to memory of 1632	2456	80b019780e0d730bf212487a3260f8cd_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\80b019780e0d730bf212487a3260f8cd_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\80b019780e0d730bf212487a3260f8cd_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2456
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:1632

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\rewok.exe

Filesize
30KB

MD5
2813ef2cea7f73bad8143dc6eb225f52

SHA1
4bd1eb8a8005256915122fdca6854f856660fec3

SHA256
af98a0dc3bbbb91bfa0996c9ea972aaf219a148dd91101c99d3aebe7a889b834

SHA512
6517118175ed734a349fed1f1d705d6120b345f3ef510a187c3380bb0f8be208054dae873adb8e390411235fecab91b06f2897ee75589e8989d7937addb26603

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

Filesize
30KB

MD5
2813ef2cea7f73bad8143dc6eb225f52

SHA1
4bd1eb8a8005256915122fdca6854f856660fec3

SHA256
af98a0dc3bbbb91bfa0996c9ea972aaf219a148dd91101c99d3aebe7a889b834

SHA512
6517118175ed734a349fed1f1d705d6120b345f3ef510a187c3380bb0f8be208054dae873adb8e390411235fecab91b06f2897ee75589e8989d7937addb26603

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

Filesize
30KB

MD5
2813ef2cea7f73bad8143dc6eb225f52

SHA1
4bd1eb8a8005256915122fdca6854f856660fec3

SHA256
af98a0dc3bbbb91bfa0996c9ea972aaf219a148dd91101c99d3aebe7a889b834

SHA512
6517118175ed734a349fed1f1d705d6120b345f3ef510a187c3380bb0f8be208054dae873adb8e390411235fecab91b06f2897ee75589e8989d7937addb26603

Download Submit
memory/2456-53-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2456-55-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2456-54-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download