ba28bd135b1f957b4435018a77b32ec45aa4bf79db1b1794e8cd5910ee1f7069

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
07/03/2024, 05:28

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General

Target

2024-03-07_1a22b24fb7c7724fafe2f6da9d1217ad_cryptolocker.exe
Size

43KB
MD5

1a22b24fb7c7724fafe2f6da9d1217ad
SHA1

e4cfe7549b02c02414dd42190127c960c058684d
SHA256

ba28bd135b1f957b4435018a77b32ec45aa4bf79db1b1794e8cd5910ee1f7069
SHA512

7108eb0bc2cc10092791d43034f495471e6a509c17c2717f01b24d9777529b74333f122453c4f1b29078842e0009ae2d82aa119005db5f3b5a8f59991aefeab1
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMRqrwGuz:bc/y2lkF0+Bjrduz

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012251-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2132	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2956	2024-03-07_1a22b24fb7c7724fafe2f6da9d1217ad_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
2956	2024-03-07_1a22b24fb7c7724fafe2f6da9d1217ad_cryptolocker.exe
2132	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2956 wrote to memory of 2132	2956	2024-03-07_1a22b24fb7c7724fafe2f6da9d1217ad_cryptolocker.exe	28
PID 2956 wrote to memory of 2132	2956	2024-03-07_1a22b24fb7c7724fafe2f6da9d1217ad_cryptolocker.exe	28
PID 2956 wrote to memory of 2132	2956	2024-03-07_1a22b24fb7c7724fafe2f6da9d1217ad_cryptolocker.exe	28
PID 2956 wrote to memory of 2132	2956	2024-03-07_1a22b24fb7c7724fafe2f6da9d1217ad_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-07_1a22b24fb7c7724fafe2f6da9d1217ad_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-07_1a22b24fb7c7724fafe2f6da9d1217ad_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2956
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2132

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\rewok.exe

Filesize
43KB

MD5
b51f75a3072500f80f1e95528c6c808b

SHA1
5d9fea3258eb3cf3ebffb115412f63da47eee11c

SHA256
b62f18ee4ee34e48564671db279a36d5ae6d932f2d78af98650b057b8518f301

SHA512
b9900f6ac18b9fe2beb1ee3ea096bafb1ea416112b4773918c4a3ead18945246ee4c8941fd63cbc8237b66258af0e87005ecdc6bf44f744ff96e20520452b2c4

Download Submit
memory/2132-18-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/2956-0-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2956-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2956-5-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download