24806c1ad3189991a6db800d65aed0c122a1454eba41b9ecc17164e169cf9af0

Analysis

max time kernel
132s
max time network
142s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
25-03-2024 12:49

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General

Target

2024-03-25_840b8290a1126f8f403e2fe1635f68c6_cryptolocker.exe
Size

62KB
MD5

840b8290a1126f8f403e2fe1635f68c6
SHA1

94fa1b1cafc4ddbaaf0b96c73ae04490c3c00b5b
SHA256

24806c1ad3189991a6db800d65aed0c122a1454eba41b9ecc17164e169cf9af0
SHA512

127f7000e4741f5c451a908b92ecd0c6f5347e1fae581ae80e58aeeae07a477981800691f5d73ac9623c019e5c55688d506c6109fd7d3892dfe92a059023bdb5
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF29329:aq7tdgI2MyzNORQtOflIwoHNV2XBFV70

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012253-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012253-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2120	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2156	2024-03-25_840b8290a1126f8f403e2fe1635f68c6_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
2156	2024-03-25_840b8290a1126f8f403e2fe1635f68c6_cryptolocker.exe
2120	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 2120	2156	2024-03-25_840b8290a1126f8f403e2fe1635f68c6_cryptolocker.exe	28
PID 2156 wrote to memory of 2120	2156	2024-03-25_840b8290a1126f8f403e2fe1635f68c6_cryptolocker.exe	28
PID 2156 wrote to memory of 2120	2156	2024-03-25_840b8290a1126f8f403e2fe1635f68c6_cryptolocker.exe	28
PID 2156 wrote to memory of 2120	2156	2024-03-25_840b8290a1126f8f403e2fe1635f68c6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-25_840b8290a1126f8f403e2fe1635f68c6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-25_840b8290a1126f8f403e2fe1635f68c6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2156
- 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:2120

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
62KB

MD5
5b309950561f67d491d0db567d5bc054

SHA1
22f2148dfc866eb906c2b950466a80a322914b69

SHA256
b0fd84a9a58d50b259a67ce84d8e003b0ded14fbe99c60b18c0239974b9cb8fd

SHA512
21027d5eb773ecab68c58b288de0636f83b190b516366476a20fcf004e964c35f3dd162afe62afebbad3f4fb6d9bf5876db44fe38771b8cd34aeae45022a83e1

Download Submit
memory/2120-17-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2156-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2156-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2156-1-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download