ef9776f1b55067b6a4739716db71d6812e6e9688f8b92dc9efb1c5245ccd85c2

Analysis

max time kernel
141s
max time network
100s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24/02/2024, 04:53

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General

Target

a0fdba7889f0a625a9bb58a5e96b1563.exe
Size

169KB
MD5

a0fdba7889f0a625a9bb58a5e96b1563
SHA1

b428773d9159cee7377af73ca78c242337c4f4d5
SHA256

ef9776f1b55067b6a4739716db71d6812e6e9688f8b92dc9efb1c5245ccd85c2
SHA512

99e39c35f0512a1ffbdef1b66c23cecd878c52ab7d16044d54f26b3ac73455d1c09085b81a6fa984ecfb0598bf3c134c750f278580cccd5787511111ec657b42
SSDEEP

3072:F0slByWqU7sUUQjA3JCY8+eSO7t7HnJHUEhElu/jtTrYYGiL3JKMv3:FLlfqU7sUUZ3xTOfHUEOUjtXYYT3J

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4080	lsass.pif

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4316-0-0x0000000000400000-0x00000000007C2000-memory.dmp	upx
behavioral2/files/0x0006000000023241-7.dat	upx
behavioral2/memory/4080-10-0x0000000000400000-0x00000000007C2000-memory.dmp	upx
behavioral2/memory/4316-13-0x0000000000400000-0x00000000007C2000-memory.dmp	upx
behavioral2/memory/4080-14-0x0000000000400000-0x00000000007C2000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\lsass.pif	a0fdba7889f0a625a9bb58a5e96b1563.exe
File opened for modification	C:\Windows\lsass.pif	a0fdba7889f0a625a9bb58a5e96b1563.exe
File opened for modification	C:\Windows\lsass.jpg	lsass.pif

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4316	a0fdba7889f0a625a9bb58a5e96b1563.exe
4080	lsass.pif

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4316 wrote to memory of 4080	4316	a0fdba7889f0a625a9bb58a5e96b1563.exe	86
PID 4316 wrote to memory of 4080	4316	a0fdba7889f0a625a9bb58a5e96b1563.exe	86
PID 4316 wrote to memory of 4080	4316	a0fdba7889f0a625a9bb58a5e96b1563.exe	86

C:\Users\Admin\AppData\Local\Temp\a0fdba7889f0a625a9bb58a5e96b1563.exe
"C:\Users\Admin\AppData\Local\Temp\a0fdba7889f0a625a9bb58a5e96b1563.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4316
- C:\Windows\lsass.pif
  C:\Windows\lsass.pif
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  PID:4080

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\lsass.pif

Filesize
169KB

MD5
a0fdba7889f0a625a9bb58a5e96b1563

SHA1
b428773d9159cee7377af73ca78c242337c4f4d5

SHA256
ef9776f1b55067b6a4739716db71d6812e6e9688f8b92dc9efb1c5245ccd85c2

SHA512
99e39c35f0512a1ffbdef1b66c23cecd878c52ab7d16044d54f26b3ac73455d1c09085b81a6fa984ecfb0598bf3c134c750f278580cccd5787511111ec657b42

Download Submit
memory/4080-10-0x0000000000400000-0x00000000007C2000-memory.dmp

Filesize
3.8MB

Download
memory/4080-14-0x0000000000400000-0x00000000007C2000-memory.dmp

Filesize
3.8MB

Download
memory/4316-0-0x0000000000400000-0x00000000007C2000-memory.dmp

Filesize
3.8MB

Download
memory/4316-13-0x0000000000400000-0x00000000007C2000-memory.dmp

Filesize
3.8MB

Download