e43c1c0a57658e63563f9c6ee257e81733f1d9976a14048c84275d51e4a3cc86

Analysis

max time kernel
146s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2023 03:31

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General

Target

267a0e87faeef6fba3aa10d417790e79.exe
Size

1.6MB
MD5

267a0e87faeef6fba3aa10d417790e79
SHA1

9d2dd266f4b662f65018b0322ce9b78918d485b0
SHA256

e43c1c0a57658e63563f9c6ee257e81733f1d9976a14048c84275d51e4a3cc86
SHA512

cfb3dddc53397ebf48991afe207f855c6cbeda94556632dd06155f13c804800b38a5fbba4e145a712327b7475207d2341c81e9c75a9eedf4a39d97a42753c8a9
SSDEEP

49152:AloqUzJCbWtqRDRLI1YCod0IOA/y9nk6KlPyTVa2F:AbYmLA1sxy9k6K1yTVr

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3456	IFinst27.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4792-0-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral2/files/0x000600000001e0ce-3.dat	upx
behavioral2/memory/4792-5-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral2/memory/3456-6-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral2/memory/3456-7-0x0000000000400000-0x000000000042B000-memory.dmp	upx

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\IFinst27.exe	267a0e87faeef6fba3aa10d417790e79.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4792 wrote to memory of 3456	4792	267a0e87faeef6fba3aa10d417790e79.exe	91
PID 4792 wrote to memory of 3456	4792	267a0e87faeef6fba3aa10d417790e79.exe	91
PID 4792 wrote to memory of 3456	4792	267a0e87faeef6fba3aa10d417790e79.exe	91

C:\Users\Admin\AppData\Local\Temp\267a0e87faeef6fba3aa10d417790e79.exe
"C:\Users\Admin\AppData\Local\Temp\267a0e87faeef6fba3aa10d417790e79.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4792
- C:\Windows\IFinst27.exe
  "C:\Windows\IFinst27.exe" -IC:\Users\Admin\AppData\Local\Temp\267a0e87faeef6fba3aa10d417790e79.exe
  2⤵
  - Executes dropped EXE
  PID:3456

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:\Windows\IFinst27.exe

Filesize
64KB

MD5
9c17bca3ef837bacded7e4299508e71d

SHA1
253c7e956ad6cb66e0e47e5d9a6a19d78e9c96e0

SHA256
2405e5479aeb7d43d1362969b9c439e5931b8f900f9adfe0faaa986365415193

SHA512
12c1c5dbdf763d6d361b9d412794b0d85b6134843114120b843f30db198a3a211e2c06eadd3ed25271b4cd06a7367df7dafc6b9b33b1bce479f3ad050caeb625

Download Submit
memory/3456-6-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/3456-7-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4792-0-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4792-5-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download