c380dc741411129c8421439038381d67d2a26906cd29faa4dc643284bd6f1077

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
06/11/2023, 20:18

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General

Target

NEAS.2023-09-28_c1439efd2ef256ad5057f03f076162c6_cryptolocker.exe
Size

88KB
MD5

c1439efd2ef256ad5057f03f076162c6
SHA1

5ffdd6d48e1c3d98399c4fd504918cbdc03ebb1c
SHA256

c380dc741411129c8421439038381d67d2a26906cd29faa4dc643284bd6f1077
SHA512

06a13ac980f2c8aa40c263bbdab49cdcf3fe01538d11b52375680786efc692290fd07efa63c2a678fee5406b0609ed66e22bb696ff3468d3e6a320bb9bdc01a8
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpl:AnBdOOtEvwDpj6za

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
272	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1964	NEAS.2023-09-28_c1439efd2ef256ad5057f03f076162c6_cryptolocker.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1964-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000e00000001201d-11.dat	upx
behavioral1/files/0x000e00000001201d-14.dat	upx
behavioral1/memory/272-16-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/1964-15-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000e00000001201d-25.dat	upx
behavioral1/memory/272-26-0x0000000000500000-0x000000000050F000-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 1964 wrote to memory of 272	1964	NEAS.2023-09-28_c1439efd2ef256ad5057f03f076162c6_cryptolocker.exe	28
PID 1964 wrote to memory of 272	1964	NEAS.2023-09-28_c1439efd2ef256ad5057f03f076162c6_cryptolocker.exe	28
PID 1964 wrote to memory of 272	1964	NEAS.2023-09-28_c1439efd2ef256ad5057f03f076162c6_cryptolocker.exe	28
PID 1964 wrote to memory of 272	1964	NEAS.2023-09-28_c1439efd2ef256ad5057f03f076162c6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-28_c1439efd2ef256ad5057f03f076162c6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-28_c1439efd2ef256ad5057f03f076162c6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:272

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
88KB

MD5
ae2f8895f5879a358b55ab18ecd2d7db

SHA1
7f04259aa7652a4c1daa7e1909686bc477401caf

SHA256
fc2c723273dba11d6ac3e4625cb79914b35aab79037e9dc43b116b5042b5fb0c

SHA512
4ea673415c53466ef6a81987bcd68117c8c4c17db448b7937a3069d4bb4a8a39ad1aa830c7fdfd16972fc877610ddd528cd3fcfa31109576a80d0a569eccd5a5

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

Filesize
88KB

MD5
ae2f8895f5879a358b55ab18ecd2d7db

SHA1
7f04259aa7652a4c1daa7e1909686bc477401caf

SHA256
fc2c723273dba11d6ac3e4625cb79914b35aab79037e9dc43b116b5042b5fb0c

SHA512
4ea673415c53466ef6a81987bcd68117c8c4c17db448b7937a3069d4bb4a8a39ad1aa830c7fdfd16972fc877610ddd528cd3fcfa31109576a80d0a569eccd5a5

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

Filesize
88KB

MD5
ae2f8895f5879a358b55ab18ecd2d7db

SHA1
7f04259aa7652a4c1daa7e1909686bc477401caf

SHA256
fc2c723273dba11d6ac3e4625cb79914b35aab79037e9dc43b116b5042b5fb0c

SHA512
4ea673415c53466ef6a81987bcd68117c8c4c17db448b7937a3069d4bb4a8a39ad1aa830c7fdfd16972fc877610ddd528cd3fcfa31109576a80d0a569eccd5a5

Download Submit
memory/272-18-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/272-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/272-19-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/272-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/272-28-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1964-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1964-3-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1964-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1964-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1964-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download