c5b84e410dc9074ff8d4c46e1cab2565fdf42b0051639079681f859a3ced6162

Analysis

max time kernel
152s
max time network
173s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
10/01/2024, 06:00

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General

Target

2024-01-09_bb0e98273d94d820f24e777732394c92_cryptolocker.exe
Size

92KB
MD5

bb0e98273d94d820f24e777732394c92
SHA1

df0dac889b2f718293e927ac85acd7475065a3e4
SHA256

c5b84e410dc9074ff8d4c46e1cab2565fdf42b0051639079681f859a3ced6162
SHA512

29daac5b4290721466509a22f9c1830e1e438bd6988993c756aa19835b23a04c65a40b93131962dc7606d0c74147390346e3daa4f7500856b78ca108600e9ab7
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp01p:AnBdOOtEvwDpj6zr

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2716	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2284	2024-01-09_bb0e98273d94d820f24e777732394c92_cryptolocker.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2284-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x0008000000012266-11.dat	upx
behavioral1/memory/2284-15-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2716-16-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x0008000000012266-25.dat	upx
behavioral1/files/0x0008000000012266-14.dat	upx
behavioral1/memory/2716-26-0x0000000000500000-0x000000000050F000-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 2284 wrote to memory of 2716	2284	2024-01-09_bb0e98273d94d820f24e777732394c92_cryptolocker.exe	18
PID 2284 wrote to memory of 2716	2284	2024-01-09_bb0e98273d94d820f24e777732394c92_cryptolocker.exe	18
PID 2284 wrote to memory of 2716	2284	2024-01-09_bb0e98273d94d820f24e777732394c92_cryptolocker.exe	18
PID 2284 wrote to memory of 2716	2284	2024-01-09_bb0e98273d94d820f24e777732394c92_cryptolocker.exe	18

C:\Users\Admin\AppData\Local\Temp\2024-01-09_bb0e98273d94d820f24e777732394c92_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-09_bb0e98273d94d820f24e777732394c92_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2284
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2716

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
92KB

MD5
a5c89188079de4cf758f4adddd9a223b

SHA1
6c0ee6b799c4c1ebf997f045a4a528883586aec6

SHA256
659a85d2c89fe68a4cc6b6e2ba98b03cb7e4e31870a6705d53b06b3dd8d8f1c9

SHA512
198c0d84873bb1c1d9368eb71b28454d3ae5c960601072e494319bb5400b2291abb4ff35d5b453d7152f5ce4558aec0fac7c2a9467d8e07c5290613e69717412

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

Filesize
37KB

MD5
b6bf90febd633a233b83e3b0f6fc4668

SHA1
d6814b6ecce2432ee08e069080510880a5872295

SHA256
676651304ed4410c2c104d3ac09e095c3cb7574ad97e0a04bc85b07498d5a867

SHA512
040f227c2f15b45c1d1d5aee2d2e212974b21be086a155cef1690ceaa504c15ffb43bbcd97c8075bb65faf648822c13f7f63bc12b343e1ba616a71c023eeffed

Download Submit
\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
75KB

MD5
db394886b0c01a788261d481a00c0f7b

SHA1
8583b8f9c098747f68fe11c78e494cd72b310698

SHA256
aae062051ab305f42ce6686cbc0a5a157a9d4197e8f6febe02c8842f6a05799c

SHA512
596e484516dfa57a76581aa05de7b4e0495c461dfcfe614fb9976bf03f2e2af537631ce7e6bfbc7aa26d54200c6966239a55664a8b7d655fb2d6257b3a6f2f7c

Download Submit
memory/2284-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2284-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2284-3-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2284-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2284-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2716-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2716-18-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/2716-24-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2716-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download