7e058e0bfb2ea22ea4a03535f5073d1d28c4bde7ab18510a5bcfe7a723993a5e

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12-02-2024 20:24

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General

Target

2024-02-12_26401e8c58bd8491c365ff3bd53b4fdb_cryptolocker.exe
Size

38KB
MD5

26401e8c58bd8491c365ff3bd53b4fdb
SHA1

8f95d4abaee3036a46a801943564ff6d29950fd4
SHA256

7e058e0bfb2ea22ea4a03535f5073d1d28c4bde7ab18510a5bcfe7a723993a5e
SHA512

d0dbc81d8b11e571492ea3ebb795f574c4f628065e08c5dcb806150554b414706a99efbc6f3ebb4581ba258cae8a8c6d2cbf8d4ab427f2e47beefc9ede482d35
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HW1d:X6QFElP6n+gJQMOtEvwDpjBsYWf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

1972 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-02-12_26401e8c58bd8491c365ff3bd53b4fdb_cryptolocker.exe

pid process

2500 2024-02-12_26401e8c58bd8491c365ff3bd53b4fdb_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1972	asih.exe

pid	process
2500	2024-02-12_26401e8c58bd8491c365ff3bd53b4fdb_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-02-12_26401e8c58bd8491c365ff3bd53b4fdb_cryptolocker.exe

description	pid	process	target process
PID 2500 wrote to memory of 1972	2500	2024-02-12_26401e8c58bd8491c365ff3bd53b4fdb_cryptolocker.exe	asih.exe
PID 2500 wrote to memory of 1972	2500	2024-02-12_26401e8c58bd8491c365ff3bd53b4fdb_cryptolocker.exe	asih.exe
PID 2500 wrote to memory of 1972	2500	2024-02-12_26401e8c58bd8491c365ff3bd53b4fdb_cryptolocker.exe	asih.exe
PID 2500 wrote to memory of 1972	2500	2024-02-12_26401e8c58bd8491c365ff3bd53b4fdb_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-02-12_26401e8c58bd8491c365ff3bd53b4fdb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_26401e8c58bd8491c365ff3bd53b4fdb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2500

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:1972

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
38KB

MD5
0ff1c5f2c1832d055048d3604fa6a565

SHA1
438e08cd8d75281c5737119b41d0f0fa5fedc463

SHA256
24f199705e02b0c071f84af399d45231c44c3c644176cca4fc979a525f3a0351

SHA512
85e35dae378eed2df956c0556cd218818c6989b5ee8973de39c3976688458a87ac048c4d18d9cd5b76307292c2615a2281706d151bc8e729a84ac5e7e33f905a

Download Submit
memory/1972-15-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2500-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2500-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2500-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download