879e7c3340b602b72556ce89e3b2dfc0a0bb2ce2c832e5d465507082fb87dfcf

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
18-03-2024 15:54

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General

Target

2024-03-18_e49879702df85d1c31ec10634c46d976_cryptolocker.exe
Size

60KB
MD5

e49879702df85d1c31ec10634c46d976
SHA1

f4c1927756eeb58288455a6b54e7533d88f5c097
SHA256

879e7c3340b602b72556ce89e3b2dfc0a0bb2ce2c832e5d465507082fb87dfcf
SHA512

7362f6a5221699c49749d026a88516ff29cbf86a12c37507776de2accba5fca837c92f480dfa13c6bf56cb3f774766b87d5fc650d5e15b2c96c581011302b776
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2l9tMPd:TCjsIOtEvwDpj5HE/OUHnSMYq

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/memory/2012-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000012329-16.dat	CryptoLocker_rule2
behavioral1/memory/2108-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2012-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2012-13-0x0000000000630000-0x000000000063E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2108-27-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 6 IoCs

resource	yara_rule
behavioral1/memory/2012-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000012329-16.dat	CryptoLocker_set1
behavioral1/memory/2108-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2012-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2012-13-0x0000000000630000-0x000000000063E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2108-27-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2108	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2012	2024-03-18_e49879702df85d1c31ec10634c46d976_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 2108	2012	2024-03-18_e49879702df85d1c31ec10634c46d976_cryptolocker.exe	28
PID 2012 wrote to memory of 2108	2012	2024-03-18_e49879702df85d1c31ec10634c46d976_cryptolocker.exe	28
PID 2012 wrote to memory of 2108	2012	2024-03-18_e49879702df85d1c31ec10634c46d976_cryptolocker.exe	28
PID 2012 wrote to memory of 2108	2012	2024-03-18_e49879702df85d1c31ec10634c46d976_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-18_e49879702df85d1c31ec10634c46d976_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-18_e49879702df85d1c31ec10634c46d976_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2108

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\misid.exe

Filesize
60KB

MD5
02a3c73bd06109c7254597846affc4c3

SHA1
fc424706cf002fe3d913af86218ca4640a307a35

SHA256
ec37c27be7f0bfa5f9217625be11e7de99b7eff6e5e1025d0ab80b71119f93be

SHA512
318715d3c44b9e976a9740733c1cd3970c2b7b6deeecfef94c908089b434dae3d8762badd0b14f66a82088addd41bd469d1e561071d291ad888fb443a215d480

Download Submit
memory/2012-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2012-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2012-3-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2012-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2012-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2012-13-0x0000000000630000-0x000000000063E000-memory.dmp

Filesize
56KB

Download
memory/2108-17-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2108-19-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2108-20-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download
memory/2108-27-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download