f2fac28c8d946a9976bf74e88797b63ca2f850468c909e707d25fe1ef2eff4a9

Analysis

max time kernel
140s
max time network
139s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
10-07-2024 07:22

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General

Target

2024-07-10_1e76fd5fe48f8cd52d5db5163d99f3c7_cryptolocker.exe
Size

40KB
MD5

1e76fd5fe48f8cd52d5db5163d99f3c7
SHA1

7ecb959ce2924dccd2a75d4d5bc6121f360e4e1a
SHA256

f2fac28c8d946a9976bf74e88797b63ca2f850468c909e707d25fe1ef2eff4a9
SHA512

ab34b7a61b8572e1c8a10c8291d9801a1e20861d7ffe97016188035f2b4b00e1dc94f44b0f12928916bed3cbd0e9ff57a5ad54f64dcd1db6298800d4c2bcea4d
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITY9FM:qDdFJy3QMOtEvwDpjjWMl7TB

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2060	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1528	2024-07-10_1e76fd5fe48f8cd52d5db5163d99f3c7_cryptolocker.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1528-8-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000a00000001227f-15.dat	upx
behavioral1/memory/2060-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2060-26-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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 1528 wrote to memory of 2060	1528	2024-07-10_1e76fd5fe48f8cd52d5db5163d99f3c7_cryptolocker.exe	30
PID 1528 wrote to memory of 2060	1528	2024-07-10_1e76fd5fe48f8cd52d5db5163d99f3c7_cryptolocker.exe	30
PID 1528 wrote to memory of 2060	1528	2024-07-10_1e76fd5fe48f8cd52d5db5163d99f3c7_cryptolocker.exe	30
PID 1528 wrote to memory of 2060	1528	2024-07-10_1e76fd5fe48f8cd52d5db5163d99f3c7_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-07-10_1e76fd5fe48f8cd52d5db5163d99f3c7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-10_1e76fd5fe48f8cd52d5db5163d99f3c7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1528
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2060

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
40KB

MD5
19c999f1ae662c6cbd09b15cafa9789f

SHA1
940e70f35080e9432fb692ecfc581431fe12eab6

SHA256
025970a5315c1c7c652333328119649cb4b82bfeba8256882723926c8b890b7b

SHA512
2e4a97603f25aefdd360d5bfc79cc03f6d8f0e6fa827e7cf740d323869b135588700a8377addbe62e86c6995b63c122aae3cc8513166835e420ac714c2261c02

Download Submit
memory/1528-9-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/1528-8-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1528-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1528-0-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2060-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2060-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2060-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2060-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download