1eef07c8e76fef902ef53dfc326ce5c0af29982ebac7e8a140cdadae2eb76475

Analysis

max time kernel
0s
max time network
148s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
09/01/2024, 06:36

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General

Target

2024-01-08_11849ba642d65bda95848b40eec150a9_cryptolocker.exe
Size

74KB
MD5

11849ba642d65bda95848b40eec150a9
SHA1

9ddd3e1a9b1ecb0ac412d777ebf8823b04c6464d
SHA256

1eef07c8e76fef902ef53dfc326ce5c0af29982ebac7e8a140cdadae2eb76475
SHA512

328fc3e1a3478de2a2be670bf135cb1892c530815e9a25a3d26f79fdd53d80ba3716138acefe94bda5859b8f7a0d1c33c9d31e9dc8de1fa50f78359f0876ffc9
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOAkXtBdl:T6a+rdOOtEvwDpjNtz

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2104	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3032	2024-01-08_11849ba642d65bda95848b40eec150a9_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000d000000012246-22.dat	upx
behavioral1/memory/2104-24-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000d000000012246-14.dat	upx
behavioral1/files/0x000d000000012246-11.dat	upx
behavioral1/memory/3032-8-0x0000000000500000-0x0000000000510000-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 3032 wrote to memory of 2104	3032	2024-01-08_11849ba642d65bda95848b40eec150a9_cryptolocker.exe	14
PID 3032 wrote to memory of 2104	3032	2024-01-08_11849ba642d65bda95848b40eec150a9_cryptolocker.exe	14
PID 3032 wrote to memory of 2104	3032	2024-01-08_11849ba642d65bda95848b40eec150a9_cryptolocker.exe	14
PID 3032 wrote to memory of 2104	3032	2024-01-08_11849ba642d65bda95848b40eec150a9_cryptolocker.exe	14

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
1⤵
- Executes dropped EXE
PID:2104

C:\Users\Admin\AppData\Local\Temp\2024-01-08_11849ba642d65bda95848b40eec150a9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-08_11849ba642d65bda95848b40eec150a9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3032

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
6KB

MD5
af9042937cf81ee8d6defeb25aaa4136

SHA1
0d8b46a9e4dc8bdb67fa3c0fb8858e4868e68b83

SHA256
190139b7704b560f139bafde571a4f0ae30824d946a81c44c91a6b507bde5aed

SHA512
cb89c75f0778b30f973e30070ce5b742c21b546871ef4d0b18a8db27dbce3b944856f5b6c8bfc4cf7ec73e41c6119c9a39ed9909075524fd7601b6c368d18604

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

Filesize
48KB

MD5
058eb992c4c1254410264319fd2b5960

SHA1
1eda67ff083c083977be5745dc160aeca55e528c

SHA256
11d9df4b48d7060cee3e2646dd58dab987bbe027d95e1c2e6818eb2f0f927cd3

SHA512
eb98b41830e8acf4d149d9a39e7f714200a6d6f318d13f0b548d164c5eae0116833f2380589414ca2a4d639f3942700f95f0f4db2db3b17a464c04968e627f81

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

Filesize
10KB

MD5
10e1c1981ad1c1922fda59a12bea8cb9

SHA1
b8b6ed1dc9531e75191abe49effe77eb842fdb31

SHA256
f40f58ea85069fe8beacfa443d708149f3c5b2ceb77d262b1e08691a77c7e2e1

SHA512
64936a25e49c6265bad212fde8bac307db33702d4920f398b2af08e2b1d19f3f268cb8c9ddff657c47771a2f7a1d61822c5350269e4aa582f533d2435c46c5c3

Download Submit
memory/2104-24-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2104-23-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2104-16-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/3032-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3032-8-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3032-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/3032-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download