a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b

Analysis

max time kernel
147s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
29/10/2022, 08:37

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General

Target

a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b.exe
Size

654KB
MD5

d271734f425ec2ba4e1018ff5ffa8343
SHA1

a351d795076e068d320d2dc49a6f231e0429947a
SHA256

a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b
SHA512

9e408addce17fca7149788a61e23d35a49c13a1ac4f3c8a56f95606d0c36fc66cbc78de30126d3935e61bf03b5600417183bce6c753e204ce55c370784213e22
SSDEEP

3072:TfTflRNjzPF5OncVbrCVru0K67rMjb+2:LTfbz5W6bEu0LMjb+2

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 4 IoCs

pid	Process
452	winlogon.exe
4616	winlogon.exe
3600	winlogon.exe
1452	winlogon.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2216-134-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/2216-136-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/2216-137-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/2216-144-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/4616-149-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/4616-150-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/4616-156-0x0000000000400000-0x000000000041C000-memory.dmp	upx

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 3724 set thread context of 2216	3724	a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b.exe	84
PID 452 set thread context of 4616	452	winlogon.exe	88
PID 4616 set thread context of 3600	4616	winlogon.exe	89
PID 4616 set thread context of 1452	4616	winlogon.exe	100

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2508	3600	WerFault.exe	89
996	1452	WerFault.exe	100

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2216	a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b.exe
4616	winlogon.exe

Suspicious use of WriteProcessMemory 41 IoCs

description	pid	Process	procid_target
PID 3724 wrote to memory of 2840	3724	a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b.exe	83
PID 3724 wrote to memory of 2840	3724	a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b.exe	83
PID 3724 wrote to memory of 2840	3724	a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b.exe	83
PID 3724 wrote to memory of 2216	3724	a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b.exe	84
PID 3724 wrote to memory of 2216	3724	a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b.exe	84
PID 3724 wrote to memory of 2216	3724	a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b.exe	84
PID 3724 wrote to memory of 2216	3724	a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b.exe	84
PID 3724 wrote to memory of 2216	3724	a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b.exe	84
PID 3724 wrote to memory of 2216	3724	a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b.exe	84
PID 3724 wrote to memory of 2216	3724	a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b.exe	84
PID 3724 wrote to memory of 2216	3724	a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b.exe	84
PID 2216 wrote to memory of 452	2216	a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b.exe	86
PID 2216 wrote to memory of 452	2216	a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b.exe	86
PID 2216 wrote to memory of 452	2216	a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b.exe	86
PID 452 wrote to memory of 2484	452	winlogon.exe	87
PID 452 wrote to memory of 2484	452	winlogon.exe	87
PID 452 wrote to memory of 2484	452	winlogon.exe	87
PID 452 wrote to memory of 4616	452	winlogon.exe	88
PID 452 wrote to memory of 4616	452	winlogon.exe	88
PID 452 wrote to memory of 4616	452	winlogon.exe	88
PID 452 wrote to memory of 4616	452	winlogon.exe	88
PID 452 wrote to memory of 4616	452	winlogon.exe	88
PID 452 wrote to memory of 4616	452	winlogon.exe	88
PID 452 wrote to memory of 4616	452	winlogon.exe	88
PID 452 wrote to memory of 4616	452	winlogon.exe	88
PID 4616 wrote to memory of 3600	4616	winlogon.exe	89
PID 4616 wrote to memory of 3600	4616	winlogon.exe	89
PID 4616 wrote to memory of 3600	4616	winlogon.exe	89
PID 4616 wrote to memory of 3600	4616	winlogon.exe	89
PID 4616 wrote to memory of 3600	4616	winlogon.exe	89
PID 4616 wrote to memory of 3600	4616	winlogon.exe	89
PID 4616 wrote to memory of 3600	4616	winlogon.exe	89
PID 4616 wrote to memory of 3600	4616	winlogon.exe	89
PID 4616 wrote to memory of 1452	4616	winlogon.exe	100
PID 4616 wrote to memory of 1452	4616	winlogon.exe	100
PID 4616 wrote to memory of 1452	4616	winlogon.exe	100
PID 4616 wrote to memory of 1452	4616	winlogon.exe	100
PID 4616 wrote to memory of 1452	4616	winlogon.exe	100
PID 4616 wrote to memory of 1452	4616	winlogon.exe	100
PID 4616 wrote to memory of 1452	4616	winlogon.exe	100
PID 4616 wrote to memory of 1452	4616	winlogon.exe	100

C:\Users\Admin\AppData\Local\Temp\a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b.exe
"C:\Users\Admin\AppData\Local\Temp\a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3724
- C:\Windows\SysWOW64\svchost.exe
  C:\Windows\system32\\svchost.exe
  2⤵
  PID:2840
- C:\Users\Admin\AppData\Local\Temp\a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b.exe
  2⤵
  - Checks computer location settings
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2216
- - C:\Users\Admin\E696D64614\winlogon.exe
    "C:\Users\Admin\E696D64614\winlogon.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:452
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\\svchost.exe
      4⤵
      PID:2484
  - - C:\Users\Admin\E696D64614\winlogon.exe
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:4616
    - - C:\Users\Admin\E696D64614\winlogon.exe
        
        "C:\Users\Admin\E696D64614\winlogon.exe"
        5⤵
        Executes dropped EXE
        
        PID:3600
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3600 -s 12
        6⤵
        Program crash
        
        PID:2508
    - - C:\Users\Admin\E696D64614\winlogon.exe
        
        "C:\Users\Admin\E696D64614\winlogon.exe"
        5⤵
        Executes dropped EXE
        
        PID:1452
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1452 -s 12
        6⤵
        Program crash
        
        PID:996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3600 -ip 3600
1⤵
PID:748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1452 -ip 1452
1⤵
PID:4504

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\E696D64614\winlogon.exe

Filesize
654KB

MD5
d271734f425ec2ba4e1018ff5ffa8343

SHA1
a351d795076e068d320d2dc49a6f231e0429947a

SHA256
a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b

SHA512
9e408addce17fca7149788a61e23d35a49c13a1ac4f3c8a56f95606d0c36fc66cbc78de30126d3935e61bf03b5600417183bce6c753e204ce55c370784213e22

Download Submit
C:\Users\Admin\E696D64614\winlogon.exe

Filesize
654KB

MD5
d271734f425ec2ba4e1018ff5ffa8343

SHA1
a351d795076e068d320d2dc49a6f231e0429947a

SHA256
a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b

SHA512
9e408addce17fca7149788a61e23d35a49c13a1ac4f3c8a56f95606d0c36fc66cbc78de30126d3935e61bf03b5600417183bce6c753e204ce55c370784213e22

Download Submit
C:\Users\Admin\E696D64614\winlogon.exe

Filesize
654KB

MD5
d271734f425ec2ba4e1018ff5ffa8343

SHA1
a351d795076e068d320d2dc49a6f231e0429947a

SHA256
a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b

SHA512
9e408addce17fca7149788a61e23d35a49c13a1ac4f3c8a56f95606d0c36fc66cbc78de30126d3935e61bf03b5600417183bce6c753e204ce55c370784213e22

Download Submit
C:\Users\Admin\E696D64614\winlogon.exe

Filesize
654KB

MD5
d271734f425ec2ba4e1018ff5ffa8343

SHA1
a351d795076e068d320d2dc49a6f231e0429947a

SHA256
a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b

SHA512
9e408addce17fca7149788a61e23d35a49c13a1ac4f3c8a56f95606d0c36fc66cbc78de30126d3935e61bf03b5600417183bce6c753e204ce55c370784213e22

Download Submit
C:\Users\Admin\E696D64614\winlogon.exe

Filesize
654KB

MD5
d271734f425ec2ba4e1018ff5ffa8343

SHA1
a351d795076e068d320d2dc49a6f231e0429947a

SHA256
a1a16334aabecd72c2d43bd7c1a27c45841e11624d25125f3ade0a5b2c2d543b

SHA512
9e408addce17fca7149788a61e23d35a49c13a1ac4f3c8a56f95606d0c36fc66cbc78de30126d3935e61bf03b5600417183bce6c753e204ce55c370784213e22

Download Submit
memory/2216-134-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/2216-136-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/2216-137-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/2216-144-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/4616-150-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/4616-149-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/4616-156-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download