5dff67bb1f2765e73ba68bf2987900086a5a95ff598953c2541e255b6e32c4fb

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
18-02-2024 13:48

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General

Target

2024-02-18_bed62b78fedf1552d53232c04e77ab96_cryptolocker.exe
Size

36KB
MD5

bed62b78fedf1552d53232c04e77ab96
SHA1

e16ff11e8044515191c73b554dc57301ccdd209e
SHA256

5dff67bb1f2765e73ba68bf2987900086a5a95ff598953c2541e255b6e32c4fb
SHA512

e2869838057cf25d646cb45575d58f73d3f0159a1271f1241de7f2349a1f535af42bba09365afdd24252f448632df2eb935d6d873d830d64bf93ea8d52727b8b
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFCF:X6QFElP6n+gJQMOtEvwDpjBmzDUF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014227-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014227-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2288	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2496	2024-02-18_bed62b78fedf1552d53232c04e77ab96_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 2496 wrote to memory of 2288	2496	2024-02-18_bed62b78fedf1552d53232c04e77ab96_cryptolocker.exe	28
PID 2496 wrote to memory of 2288	2496	2024-02-18_bed62b78fedf1552d53232c04e77ab96_cryptolocker.exe	28
PID 2496 wrote to memory of 2288	2496	2024-02-18_bed62b78fedf1552d53232c04e77ab96_cryptolocker.exe	28
PID 2496 wrote to memory of 2288	2496	2024-02-18_bed62b78fedf1552d53232c04e77ab96_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_bed62b78fedf1552d53232c04e77ab96_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_bed62b78fedf1552d53232c04e77ab96_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2288

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
36KB

MD5
e4ed34d34d1e29ac1a1488fc600b781b

SHA1
ff249fdcf27a8b802d8c30043b52a85c84ae2ef4

SHA256
c0ff0fa6e537b3cb49397e3dbe0caa0e6c2ed2de044cf761c6c6c01c01a1c962

SHA512
59dd7e95adeeb1b7eb1812d545691a1007a685b637ee56150f7bab6b9b2fdd51e75f1b8b5492efbaa1f46c68135b831083e93cc472266aff5cbf566d1f1f32cc

Download Submit
memory/2288-15-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2288-17-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2496-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2496-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2496-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download