9e2c4d229090b6289073654ba02ee50da7a330ded0c36c89fed4706a44931693

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05/05/2024, 03:36

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General

Target

2024-05-05_8ee3ce10e86a19ce947374b980588ac7_cryptolocker.exe
Size

29KB
MD5

8ee3ce10e86a19ce947374b980588ac7
SHA1

9c8ab33767082bfe62ae143b6bb03cd3c9fcf9ea
SHA256

9e2c4d229090b6289073654ba02ee50da7a330ded0c36c89fed4706a44931693
SHA512

f7855d3963ccb193848722acf8f7ffe51787b8455fbe0c1422bbd863f98f3f072421ce64d57baa86ced1aeece41ab5e78ed1a63f1fca308154ad3c6d047f772c
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGbNAKSjNfC/:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000013143-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000013143-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2808	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2872	2024-05-05_8ee3ce10e86a19ce947374b980588ac7_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
2872	2024-05-05_8ee3ce10e86a19ce947374b980588ac7_cryptolocker.exe
2808	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 2808	2872	2024-05-05_8ee3ce10e86a19ce947374b980588ac7_cryptolocker.exe	28
PID 2872 wrote to memory of 2808	2872	2024-05-05_8ee3ce10e86a19ce947374b980588ac7_cryptolocker.exe	28
PID 2872 wrote to memory of 2808	2872	2024-05-05_8ee3ce10e86a19ce947374b980588ac7_cryptolocker.exe	28
PID 2872 wrote to memory of 2808	2872	2024-05-05_8ee3ce10e86a19ce947374b980588ac7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-05_8ee3ce10e86a19ce947374b980588ac7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-05_8ee3ce10e86a19ce947374b980588ac7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2872
- 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:2808

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\hurok.exe

Filesize
30KB

MD5
779a61f68a7ceb1043cd4817728f2755

SHA1
4c83ae1e2264422337d62035fb68dbbe94618bfb

SHA256
918a79805f8444fcdd803b09e74df033e6068fa19b4323d22540c01859e0e88e

SHA512
7b75e2fcb2654085c6ad808ccac426f52ef488aab422f10ba295ea2002574d8f4cecb4a0bfe7a8f894b764ff28ad0d92c33a8092f9c67c0756654824b10b1851

Download Submit
memory/2808-23-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2872-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2872-8-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2872-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download