09ccbb731ce6a838db827e2f8a2e51962060e9ce077d966c9b3685bc18deea86

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17/04/2024, 03:27

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General

Target

2024-04-17_07a2afc1b755f951bb916cbf261aa0c1_cryptolocker.exe
Size

64KB
MD5

07a2afc1b755f951bb916cbf261aa0c1
SHA1

ef21a2adf8475d1994d8856932fdfd7e6252c1c7
SHA256

09ccbb731ce6a838db827e2f8a2e51962060e9ce077d966c9b3685bc18deea86
SHA512

8cb6ec3ac3e0936ce0d0f46e3a7c27264de42b791898cdcf4a9e1bba654d6d3ea4aec64839569549aa0b67c4dae95424031f66106cdc5b05c569444a7db849f2
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x/9lfL+gniDScG7:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7C

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000122c3-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000122c3-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2572	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1444	2024-04-17_07a2afc1b755f951bb916cbf261aa0c1_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
1444	2024-04-17_07a2afc1b755f951bb916cbf261aa0c1_cryptolocker.exe
2572	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1444 wrote to memory of 2572	1444	2024-04-17_07a2afc1b755f951bb916cbf261aa0c1_cryptolocker.exe	28
PID 1444 wrote to memory of 2572	1444	2024-04-17_07a2afc1b755f951bb916cbf261aa0c1_cryptolocker.exe	28
PID 1444 wrote to memory of 2572	1444	2024-04-17_07a2afc1b755f951bb916cbf261aa0c1_cryptolocker.exe	28
PID 1444 wrote to memory of 2572	1444	2024-04-17_07a2afc1b755f951bb916cbf261aa0c1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-17_07a2afc1b755f951bb916cbf261aa0c1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-17_07a2afc1b755f951bb916cbf261aa0c1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1444
- 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:2572

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
64KB

MD5
33f941449250bd94adcb50b2b5d6f422

SHA1
e5e47fd7dc3562c5a30f5c4a87b322e933a89ee2

SHA256
c0a49c38286353b80275395f62d68fe149e9d49fa44f03cecc87b7b14dc71c9b

SHA512
114930e3319461a0585beb79c5d1e6c59c9894a0ce2ef46a3ad77a44bada79e31d386556b14125fb28409c54784bd21679048ee40906565fbb22db3492ff2f35

Download Submit
memory/1444-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1444-2-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1444-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2572-17-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download