bd265145cd1381c34d366e1553c163b44363338067721483f031b7efdf050173

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
17/02/2024, 05:53

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General

Target

2024-02-17_e2107da448169317ac6545186529679b_cryptolocker.exe
Size

44KB
MD5

e2107da448169317ac6545186529679b
SHA1

13e3a953acb04d95a8f3c9c182824534c6d55132
SHA256

bd265145cd1381c34d366e1553c163b44363338067721483f031b7efdf050173
SHA512

20ce12e77982136f1d2075cc52e647f2a43f422884ff733bf81a1cf581e9f2a4fb37f4b05c2b789f3a5524d360732ef61aee2b71a935172a78026db2a077a560
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu556yPh:X6QFElP6n+gJQMOtEvwDpjB0GIWvPh

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012203-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012203-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3056	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2928	2024-02-17_e2107da448169317ac6545186529679b_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 2928 wrote to memory of 3056	2928	2024-02-17_e2107da448169317ac6545186529679b_cryptolocker.exe	28
PID 2928 wrote to memory of 3056	2928	2024-02-17_e2107da448169317ac6545186529679b_cryptolocker.exe	28
PID 2928 wrote to memory of 3056	2928	2024-02-17_e2107da448169317ac6545186529679b_cryptolocker.exe	28
PID 2928 wrote to memory of 3056	2928	2024-02-17_e2107da448169317ac6545186529679b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-17_e2107da448169317ac6545186529679b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_e2107da448169317ac6545186529679b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2928
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3056

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
44KB

MD5
e90b4a8113396bc9c9ef86a5b5050cd2

SHA1
534c7d2af2a94752616289f9b540c178a4981f29

SHA256
f5cdd4bae96add7a5c0c7dd93b4ecfb67956e124c0f35f28fe4c093acd0b443a

SHA512
ac5521a0e7f9eaacd2b429f5f2d1063e36d984ab329c97833bffe71716d0a8a2fb70f0709fae5f73d434645e9f7a7d984fc2f3cb704c51cbd67fb972a87e2d8b

Download Submit
memory/2928-0-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2928-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2928-8-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/3056-16-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3056-15-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download