c51f3928d149b8d7e662da27e16e3d8a499e39fb940bce58ea5be1bcf0cb8a7f

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
28-05-2024 12:25

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General

Target

2024-05-28_f260a0e29bfb95d68305cb12ebcaaf5f_cryptolocker.exe
Size

73KB
MD5

f260a0e29bfb95d68305cb12ebcaaf5f
SHA1

b9f48db2d4180e715965192b9fd8bf44e5ddfd2d
SHA256

c51f3928d149b8d7e662da27e16e3d8a499e39fb940bce58ea5be1bcf0cb8a7f
SHA512

06f51f064503e2678e6d69eea17d1a5aa250f357a68ba79b883fceaec0d73210123d2fbc78191dcf08d3148058e9e535c2772318603a8c69ec71235564a43867
SSDEEP

768:u6LsoEEeegiZPvEhHSG+gZgtOOtEvwDpjeY10Y/YMst6:u6QFElP6n+gWMOtEvwDpjJGYQbE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000155f6-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000155f6-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2900	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
844	2024-05-28_f260a0e29bfb95d68305cb12ebcaaf5f_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 844 wrote to memory of 2900	844	2024-05-28_f260a0e29bfb95d68305cb12ebcaaf5f_cryptolocker.exe	28
PID 844 wrote to memory of 2900	844	2024-05-28_f260a0e29bfb95d68305cb12ebcaaf5f_cryptolocker.exe	28
PID 844 wrote to memory of 2900	844	2024-05-28_f260a0e29bfb95d68305cb12ebcaaf5f_cryptolocker.exe	28
PID 844 wrote to memory of 2900	844	2024-05-28_f260a0e29bfb95d68305cb12ebcaaf5f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-28_f260a0e29bfb95d68305cb12ebcaaf5f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-28_f260a0e29bfb95d68305cb12ebcaaf5f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:844
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2900

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
74KB

MD5
87fd2e02841b8a7313904e4bb9379c43

SHA1
1cedd623b56d3ac3fd32987efd64de4ac90a42e0

SHA256
a424e56c735c2e9dfce660a41eab74d372344945728eefe50bbc9eb4e3ec839e

SHA512
afe50c5905015d5cd33b7da704b47cdb89d488e15afa4e923e4928ccf07299da4a0e763e711934236bc483860f292583140044992665f10bbfc8e657707523c5

Download Submit
memory/844-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/844-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/844-2-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2900-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download