42e183f61735868b10c3a4b128496d2f51fb49458dc49715dde5dfda82828a3c

Analysis

max time kernel
146s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06/03/2024, 16:22

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General

Target

b7d7d55c964c6888fb6120719202fb1d.exe
Size

451KB
MD5

b7d7d55c964c6888fb6120719202fb1d
SHA1

a513bc72ef573ce215b436fd1ef71a27eab0d226
SHA256

42e183f61735868b10c3a4b128496d2f51fb49458dc49715dde5dfda82828a3c
SHA512

a229428dcddb6cfc126b7f4db42079e8fc22f05b1502444708d660a36da79da76a819bfebcd3c757f1e24dbe02d98535836378e53e938c3d4f8811e45c48cec7
SSDEEP

1536:hO20qHkRRNpTNJo9KJt7i3ukMV111I8Yp45wzvShJFIn8lq93oFDeUXtk3ns:hMRjVo9uFiJu11upaEMq8Y3Utm

Score

7^/10

upx

Malware Config

Signatures

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-1-5-21-2727153400-192325109-1870347593-1000\Control Panel\International\Geo\Nation	b7d7d55c964c6888fb6120719202fb1d.exe

Executes dropped EXE 7 IoCs

pid	Process
3304	winlogon.exe
3912	winlogon.exe
5016	winlogon.exe
1832	winlogon.exe
2328	winlogon.exe
3760	winlogon.exe
2452	winlogon.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/748-0-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/748-3-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/748-4-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/748-15-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/3912-28-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/3912-34-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/3912-40-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/3912-46-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/3912-52-0x0000000000400000-0x000000000041C000-memory.dmp	upx

Suspicious use of SetThreadContext 7 IoCs

description	pid	Process	procid_target
PID 1516 set thread context of 748	1516	b7d7d55c964c6888fb6120719202fb1d.exe	88
PID 3304 set thread context of 3912	3304	winlogon.exe	93
PID 3912 set thread context of 5016	3912	winlogon.exe	96
PID 3912 set thread context of 1832	3912	winlogon.exe	108
PID 3912 set thread context of 2328	3912	winlogon.exe	118
PID 3912 set thread context of 3760	3912	winlogon.exe	122
PID 3912 set thread context of 2452	3912	winlogon.exe	125

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

System Information Discovery
T1082

Program crash 5 IoCs

pid	pid_target	Process	procid_target
704	5016	WerFault.exe	96
416	1832	WerFault.exe	108
4384	2328	WerFault.exe	118
1544	3760	WerFault.exe	122
1520	2452	WerFault.exe	125

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
748	b7d7d55c964c6888fb6120719202fb1d.exe
3912	winlogon.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1516 wrote to memory of 2112	1516	b7d7d55c964c6888fb6120719202fb1d.exe	87
PID 1516 wrote to memory of 2112	1516	b7d7d55c964c6888fb6120719202fb1d.exe	87
PID 1516 wrote to memory of 2112	1516	b7d7d55c964c6888fb6120719202fb1d.exe	87
PID 1516 wrote to memory of 748	1516	b7d7d55c964c6888fb6120719202fb1d.exe	88
PID 1516 wrote to memory of 748	1516	b7d7d55c964c6888fb6120719202fb1d.exe	88
PID 1516 wrote to memory of 748	1516	b7d7d55c964c6888fb6120719202fb1d.exe	88
PID 1516 wrote to memory of 748	1516	b7d7d55c964c6888fb6120719202fb1d.exe	88
PID 1516 wrote to memory of 748	1516	b7d7d55c964c6888fb6120719202fb1d.exe	88
PID 1516 wrote to memory of 748	1516	b7d7d55c964c6888fb6120719202fb1d.exe	88
PID 1516 wrote to memory of 748	1516	b7d7d55c964c6888fb6120719202fb1d.exe	88
PID 1516 wrote to memory of 748	1516	b7d7d55c964c6888fb6120719202fb1d.exe	88
PID 748 wrote to memory of 3304	748	b7d7d55c964c6888fb6120719202fb1d.exe	91
PID 748 wrote to memory of 3304	748	b7d7d55c964c6888fb6120719202fb1d.exe	91
PID 748 wrote to memory of 3304	748	b7d7d55c964c6888fb6120719202fb1d.exe	91
PID 3304 wrote to memory of 1400	3304	winlogon.exe	92
PID 3304 wrote to memory of 1400	3304	winlogon.exe	92
PID 3304 wrote to memory of 1400	3304	winlogon.exe	92
PID 3304 wrote to memory of 3912	3304	winlogon.exe	93
PID 3304 wrote to memory of 3912	3304	winlogon.exe	93
PID 3304 wrote to memory of 3912	3304	winlogon.exe	93
PID 3304 wrote to memory of 3912	3304	winlogon.exe	93
PID 3304 wrote to memory of 3912	3304	winlogon.exe	93
PID 3304 wrote to memory of 3912	3304	winlogon.exe	93
PID 3304 wrote to memory of 3912	3304	winlogon.exe	93
PID 3304 wrote to memory of 3912	3304	winlogon.exe	93
PID 3912 wrote to memory of 5016	3912	winlogon.exe	96
PID 3912 wrote to memory of 5016	3912	winlogon.exe	96
PID 3912 wrote to memory of 5016	3912	winlogon.exe	96
PID 3912 wrote to memory of 5016	3912	winlogon.exe	96
PID 3912 wrote to memory of 5016	3912	winlogon.exe	96
PID 3912 wrote to memory of 5016	3912	winlogon.exe	96
PID 3912 wrote to memory of 5016	3912	winlogon.exe	96
PID 3912 wrote to memory of 5016	3912	winlogon.exe	96
PID 3912 wrote to memory of 1832	3912	winlogon.exe	108
PID 3912 wrote to memory of 1832	3912	winlogon.exe	108
PID 3912 wrote to memory of 1832	3912	winlogon.exe	108
PID 3912 wrote to memory of 1832	3912	winlogon.exe	108
PID 3912 wrote to memory of 1832	3912	winlogon.exe	108
PID 3912 wrote to memory of 1832	3912	winlogon.exe	108
PID 3912 wrote to memory of 1832	3912	winlogon.exe	108
PID 3912 wrote to memory of 1832	3912	winlogon.exe	108
PID 3912 wrote to memory of 2328	3912	winlogon.exe	118
PID 3912 wrote to memory of 2328	3912	winlogon.exe	118
PID 3912 wrote to memory of 2328	3912	winlogon.exe	118
PID 3912 wrote to memory of 2328	3912	winlogon.exe	118
PID 3912 wrote to memory of 2328	3912	winlogon.exe	118
PID 3912 wrote to memory of 2328	3912	winlogon.exe	118
PID 3912 wrote to memory of 2328	3912	winlogon.exe	118
PID 3912 wrote to memory of 2328	3912	winlogon.exe	118
PID 3912 wrote to memory of 3760	3912	winlogon.exe	122
PID 3912 wrote to memory of 3760	3912	winlogon.exe	122
PID 3912 wrote to memory of 3760	3912	winlogon.exe	122
PID 3912 wrote to memory of 3760	3912	winlogon.exe	122
PID 3912 wrote to memory of 3760	3912	winlogon.exe	122
PID 3912 wrote to memory of 3760	3912	winlogon.exe	122
PID 3912 wrote to memory of 3760	3912	winlogon.exe	122
PID 3912 wrote to memory of 3760	3912	winlogon.exe	122
PID 3912 wrote to memory of 2452	3912	winlogon.exe	125
PID 3912 wrote to memory of 2452	3912	winlogon.exe	125
PID 3912 wrote to memory of 2452	3912	winlogon.exe	125
PID 3912 wrote to memory of 2452	3912	winlogon.exe	125
PID 3912 wrote to memory of 2452	3912	winlogon.exe	125
PID 3912 wrote to memory of 2452	3912	winlogon.exe	125
PID 3912 wrote to memory of 2452	3912	winlogon.exe	125

C:\Users\Admin\AppData\Local\Temp\b7d7d55c964c6888fb6120719202fb1d.exe
"C:\Users\Admin\AppData\Local\Temp\b7d7d55c964c6888fb6120719202fb1d.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1516
- C:\Windows\SysWOW64\svchost.exe
  C:\Windows\system32\\svchost.exe
  2⤵
  PID:2112
- C:\Users\Admin\AppData\Local\Temp\b7d7d55c964c6888fb6120719202fb1d.exe
  2⤵
  - Checks computer location settings
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:748
- - 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:3304
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\\svchost.exe
      4⤵
      PID:1400
  - - C:\Users\Admin\E696D64614\winlogon.exe
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:3912
    - - C:\Users\Admin\E696D64614\winlogon.exe
        
        "C:\Users\Admin\E696D64614\winlogon.exe"
        5⤵
        Executes dropped EXE
        
        PID:5016
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 12
        6⤵
        Program crash
        
        PID:704
    - - C:\Users\Admin\E696D64614\winlogon.exe
        
        "C:\Users\Admin\E696D64614\winlogon.exe"
        5⤵
        Executes dropped EXE
        
        PID:1832
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1832 -s 12
        6⤵
        Program crash
        
        PID:416
    - - C:\Users\Admin\E696D64614\winlogon.exe
        
        "C:\Users\Admin\E696D64614\winlogon.exe"
        5⤵
        Executes dropped EXE
        
        PID:2328
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2328 -s 12
        6⤵
        Program crash
        
        PID:4384
    - - C:\Users\Admin\E696D64614\winlogon.exe
        
        "C:\Users\Admin\E696D64614\winlogon.exe"
        5⤵
        Executes dropped EXE
        
        PID:3760
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3760 -s 12
        6⤵
        Program crash
        
        PID:1544
    - - C:\Users\Admin\E696D64614\winlogon.exe
        
        "C:\Users\Admin\E696D64614\winlogon.exe"
        5⤵
        Executes dropped EXE
        
        PID:2452
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2452 -s 12
        6⤵
        Program crash
        
        PID:1520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5016 -ip 5016
1⤵
PID:2292

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1832 -ip 1832
1⤵
PID:2112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2328 -ip 2328
1⤵
PID:1680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3760 -ip 3760
1⤵
PID:2696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2452 -ip 2452
1⤵
PID:3612

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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
451KB

MD5
b7d7d55c964c6888fb6120719202fb1d

SHA1
a513bc72ef573ce215b436fd1ef71a27eab0d226

SHA256
42e183f61735868b10c3a4b128496d2f51fb49458dc49715dde5dfda82828a3c

SHA512
a229428dcddb6cfc126b7f4db42079e8fc22f05b1502444708d660a36da79da76a819bfebcd3c757f1e24dbe02d98535836378e53e938c3d4f8811e45c48cec7

Download Submit
memory/748-0-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/748-3-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/748-4-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/748-15-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/1516-1-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/3304-20-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/3912-28-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/3912-34-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/3912-40-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/3912-46-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/3912-52-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download