10980a1ff1828640b371404349b4d636b6991638f5a32574dd76212b92daf943

Analysis

max time kernel
151s
max time network
157s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
03-02-2024 04:08

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General

Target

2024-02-03_88e27347d66a97520cb53274c7fc02cb_cryptolocker.exe
Size

99KB
MD5

88e27347d66a97520cb53274c7fc02cb
SHA1

ceaa1c8cfe7a6cdf918163b3c2a6ff0de7d2ad35
SHA256

10980a1ff1828640b371404349b4d636b6991638f5a32574dd76212b92daf943
SHA512

47ccb332152b12979ec718a333f8930825fdf9f39701039a77ca43bac3eac200a6ca435ec623c2b5da0bd87dd5f55f8776d1e6da371b1bb7ffab2ac02d844deb
SSDEEP

1536:26QFElP6n+gBQMOtEvwDpjQGYQbN/PKwNCWwI7:26a+2OtEvwDpjtz/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012267-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012267-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2736	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2224	2024-02-03_88e27347d66a97520cb53274c7fc02cb_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 2224 wrote to memory of 2736	2224	2024-02-03_88e27347d66a97520cb53274c7fc02cb_cryptolocker.exe	28
PID 2224 wrote to memory of 2736	2224	2024-02-03_88e27347d66a97520cb53274c7fc02cb_cryptolocker.exe	28
PID 2224 wrote to memory of 2736	2224	2024-02-03_88e27347d66a97520cb53274c7fc02cb_cryptolocker.exe	28
PID 2224 wrote to memory of 2736	2224	2024-02-03_88e27347d66a97520cb53274c7fc02cb_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-03_88e27347d66a97520cb53274c7fc02cb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-03_88e27347d66a97520cb53274c7fc02cb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2736

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
99KB

MD5
bdb2d4625bae1ef7d13ea2f13bff342f

SHA1
11a12d8931d6e1de38e5a8b21e2b99033f8f1f95

SHA256
6427d2bc7f46104d2982f0e14131b308471cdab50032e6249cf83371645f4a94

SHA512
0665cd39ce207f4c360d5a35ff7ea18c8e3f850edac549c53315f2043022890fd5d09f582581ab61f7d55c7969b6c433c632c18398863fcdd242d9f9e811541a

Download Submit
memory/2224-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2224-1-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2224-6-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2736-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2736-19-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download