319fb33768722efe21ae0ff42b48d360cc59f6a054032700ffa448ae570c00b3

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 02:52

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General

Target

2024-05-22_e464c79390cf783b8ce125ebeb0382fb_cryptolocker.exe
Size

41KB
MD5

e464c79390cf783b8ce125ebeb0382fb
SHA1

093e5edf34544d5b99f270bf39c1e85967272252
SHA256

319fb33768722efe21ae0ff42b48d360cc59f6a054032700ffa448ae570c00b3
SHA512

9bc90d10e3e8c45cddf056fb4c073f6cc5e6140ff75ee1db306635a6fbdfc8bfc1522729c16827f959f640f4a0b616c98e305abeb5e09513692af7a4fa2814c8
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HKcfr9Or6:X6QFElP6n+gJQMOtEvwDpjBsYK6r0r6

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

2980 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-22_e464c79390cf783b8ce125ebeb0382fb_cryptolocker.exe

pid process

2240 2024-05-22_e464c79390cf783b8ce125ebeb0382fb_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2980	asih.exe

pid	process
2240	2024-05-22_e464c79390cf783b8ce125ebeb0382fb_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-22_e464c79390cf783b8ce125ebeb0382fb_cryptolocker.exe

description	pid	process	target process
PID 2240 wrote to memory of 2980	2240	2024-05-22_e464c79390cf783b8ce125ebeb0382fb_cryptolocker.exe	asih.exe
PID 2240 wrote to memory of 2980	2240	2024-05-22_e464c79390cf783b8ce125ebeb0382fb_cryptolocker.exe	asih.exe
PID 2240 wrote to memory of 2980	2240	2024-05-22_e464c79390cf783b8ce125ebeb0382fb_cryptolocker.exe	asih.exe
PID 2240 wrote to memory of 2980	2240	2024-05-22_e464c79390cf783b8ce125ebeb0382fb_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_e464c79390cf783b8ce125ebeb0382fb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_e464c79390cf783b8ce125ebeb0382fb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2240

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2980

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe
Filesize
41KB

MD5
468b40b337f5185f7b077707620caa8c

SHA1
b088deaf7a8402216d82758a6f9928ed6381bc36

SHA256
c54aa17e66800983d121c20a5c106ea525ccb43b4a89b4bf52bd581fef103cb1

SHA512
122ae79f6b70abf9b40bb03d5caf64f09c4b7774e9f00567bd028b27e5734794a85f2c80b55140e33632bd1922ba0f410eef28f3e68b3dd114e40d7b4df17ea3

Download Submit
memory/2240-1-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2240-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2240-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2980-15-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2980-22-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download