e371fda31b7745679290ad68768f2cc5c74b9aa934d3aae26e62dc890e8398d6

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/04/2024, 03:34

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General

Target

2024-04-26_3770d7abe719f3c821d18e0c150733fe_cryptolocker.exe
Size

91KB
MD5

3770d7abe719f3c821d18e0c150733fe
SHA1

9de52913c2b22c7cc7b7e0822216c1305c0df9be
SHA256

e371fda31b7745679290ad68768f2cc5c74b9aa934d3aae26e62dc890e8398d6
SHA512

0829445d7d20dd61c74b5c4efc8ec486dfaed1c178208140f3c18a1ec5d052367e8eae7cfd06b946163cc84abb9345a8cddb2ab2182645db2664472d3f0ca8f5
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwMgL0e:V6a+pOtEvwDpjtzh

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00070000000122cd-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x00070000000122cd-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2840	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2104	2024-04-26_3770d7abe719f3c821d18e0c150733fe_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 2104 wrote to memory of 2840	2104	2024-04-26_3770d7abe719f3c821d18e0c150733fe_cryptolocker.exe	28
PID 2104 wrote to memory of 2840	2104	2024-04-26_3770d7abe719f3c821d18e0c150733fe_cryptolocker.exe	28
PID 2104 wrote to memory of 2840	2104	2024-04-26_3770d7abe719f3c821d18e0c150733fe_cryptolocker.exe	28
PID 2104 wrote to memory of 2840	2104	2024-04-26_3770d7abe719f3c821d18e0c150733fe_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-26_3770d7abe719f3c821d18e0c150733fe_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-26_3770d7abe719f3c821d18e0c150733fe_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2840

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\asih.exe

Filesize
92KB

MD5
42eb9f8449f7152f4a4fee11ef5eb933

SHA1
508db6170d47cf0780cf1c4c55b68655cd3d2811

SHA256
0c33f7374f95811da9a88c78a925166fca44a13ca4e0ff047e250779356990a9

SHA512
e7a5ea09f3829e9c089fd6dfcc9e0853d6711af85b07f173c5abe885cc68c2747a19f6a9fb2cf9c0294ee0c84151c3aa86a86873d74743551a9ea6920ebc1887

Download Submit
memory/2104-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2104-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2104-4-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2840-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download