e1a136cf9b9c446555b264d288c93ea5a307c68a55c81b2697b80b94147611e0

Analysis

max time kernel
121s
max time network
138s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26/12/2023, 04:54

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General

Target

55d26709c485e1aab9338b70f0fdbf88.exe
Size

3.9MB
MD5

55d26709c485e1aab9338b70f0fdbf88
SHA1

c88c4bb3205ee6ad874c6450b4ca067cf8b895f8
SHA256

e1a136cf9b9c446555b264d288c93ea5a307c68a55c81b2697b80b94147611e0
SHA512

9c531be7f4eb3c0ca271a7ff919c14853a9ddba23abf4c99d16ae753324aec910438cdd5bb0e710197e92294b8990b2287ffa23d8cc27ebb2ea50b670c50917f
SSDEEP

98304:Ap9UAn8AuUQIV/fESYOAvV5q6mk2Hef8XSktswQO9KlZrua4S:a95ngQNYOAD64sQOgCzS

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1592	IFinst27.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/532-0-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral1/files/0x000a00000001225a-8.dat	upx
behavioral1/memory/532-7-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral1/memory/1592-9-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral1/memory/532-3-0x0000000000220000-0x000000000024B000-memory.dmp	upx
behavioral1/memory/1592-10-0x0000000000400000-0x000000000042B000-memory.dmp	upx

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\IFinst27.exe	55d26709c485e1aab9338b70f0fdbf88.exe

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 532 wrote to memory of 1592	532	55d26709c485e1aab9338b70f0fdbf88.exe	28
PID 532 wrote to memory of 1592	532	55d26709c485e1aab9338b70f0fdbf88.exe	28
PID 532 wrote to memory of 1592	532	55d26709c485e1aab9338b70f0fdbf88.exe	28
PID 532 wrote to memory of 1592	532	55d26709c485e1aab9338b70f0fdbf88.exe	28

C:\Users\Admin\AppData\Local\Temp\55d26709c485e1aab9338b70f0fdbf88.exe
"C:\Users\Admin\AppData\Local\Temp\55d26709c485e1aab9338b70f0fdbf88.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:532
- C:\Windows\IFinst27.exe
  "C:\Windows\IFinst27.exe" -IC:\Users\Admin\AppData\Local\Temp\55d26709c485e1aab9338b70f0fdbf88.exe
  2⤵
  - Executes dropped EXE
  PID:1592

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/532-0-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/532-7-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/532-3-0x0000000000220000-0x000000000024B000-memory.dmp

Filesize
172KB

Download
memory/532-11-0x0000000000220000-0x000000000024B000-memory.dmp

Filesize
172KB

Download
memory/1592-9-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1592-10-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download