97b7f4befd9c908ab3ba2aa80d5b64ec6468d740add89c6dae8b9b089e8b2abd

Analysis

max time kernel
136s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23/08/2024, 10:36

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General

Target

bb6193012cbb778a7f50179459827929_JaffaCakes118.exe
Size

9.3MB
MD5

bb6193012cbb778a7f50179459827929
SHA1

403a943e2924fbcd7da71de674cf75e83048c5df
SHA256

97b7f4befd9c908ab3ba2aa80d5b64ec6468d740add89c6dae8b9b089e8b2abd
SHA512

3be40208819c4f2f86eaf4fba8ec10c9f6f07b101da848f636c048dd71bb9e73d6edc8d5d367451fc5bb287e573e6af567b0da78030a7caa3f6a45b84d9b3a14
SSDEEP

3072:X/NvCCDFcKR1px064LZui6fAMyDdnewv/Yb:laCBc61px0652MIewvQb

Score

10^/10

defense_evasion discovery persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe, C:\\Program Files\\Common Files\\Program Shared\\Isass.exe"	reg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe, C:\\Program Files\\Common Files\\Program Shared\\Isass.exe"	reg.exe

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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	bb6193012cbb778a7f50179459827929_JaffaCakes118.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3236-1-0x0000000000400000-0x0000000000D45000-memory.dmp	upx
behavioral2/memory/3236-3-0x0000000000400000-0x0000000000D45000-memory.dmp	upx

Hide Artifacts: Hidden Files and Directories 1 TTPs 2 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
3092	cmd.exe
4972	cmd.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Common Files\Program Shared\Isass.exe	attrib.exe
File opened for modification	C:\Program Files\Common Files\Program Shared	attrib.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bb6193012cbb778a7f50179459827929_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3248	cmd.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 3236 wrote to memory of 3248	3236	bb6193012cbb778a7f50179459827929_JaffaCakes118.exe	85
PID 3236 wrote to memory of 3248	3236	bb6193012cbb778a7f50179459827929_JaffaCakes118.exe	85
PID 3236 wrote to memory of 3248	3236	bb6193012cbb778a7f50179459827929_JaffaCakes118.exe	85
PID 3236 wrote to memory of 4336	3236	bb6193012cbb778a7f50179459827929_JaffaCakes118.exe	87
PID 3236 wrote to memory of 4336	3236	bb6193012cbb778a7f50179459827929_JaffaCakes118.exe	87
PID 3236 wrote to memory of 4336	3236	bb6193012cbb778a7f50179459827929_JaffaCakes118.exe	87
PID 3236 wrote to memory of 4280	3236	bb6193012cbb778a7f50179459827929_JaffaCakes118.exe	89
PID 3236 wrote to memory of 4280	3236	bb6193012cbb778a7f50179459827929_JaffaCakes118.exe	89
PID 3236 wrote to memory of 4280	3236	bb6193012cbb778a7f50179459827929_JaffaCakes118.exe	89
PID 3236 wrote to memory of 3092	3236	bb6193012cbb778a7f50179459827929_JaffaCakes118.exe	91
PID 3236 wrote to memory of 3092	3236	bb6193012cbb778a7f50179459827929_JaffaCakes118.exe	91
PID 3236 wrote to memory of 3092	3236	bb6193012cbb778a7f50179459827929_JaffaCakes118.exe	91
PID 3236 wrote to memory of 4972	3236	bb6193012cbb778a7f50179459827929_JaffaCakes118.exe	93
PID 3236 wrote to memory of 4972	3236	bb6193012cbb778a7f50179459827929_JaffaCakes118.exe	93
PID 3236 wrote to memory of 4972	3236	bb6193012cbb778a7f50179459827929_JaffaCakes118.exe	93
PID 4336 wrote to memory of 3776	4336	cmd.exe	95
PID 4336 wrote to memory of 3776	4336	cmd.exe	95
PID 4336 wrote to memory of 3776	4336	cmd.exe	95
PID 4280 wrote to memory of 2012	4280	cmd.exe	96
PID 4280 wrote to memory of 2012	4280	cmd.exe	96
PID 4280 wrote to memory of 2012	4280	cmd.exe	96
PID 3092 wrote to memory of 740	3092	cmd.exe	97
PID 3092 wrote to memory of 740	3092	cmd.exe	97
PID 3092 wrote to memory of 740	3092	cmd.exe	97
PID 4972 wrote to memory of 1332	4972	cmd.exe	98
PID 4972 wrote to memory of 1332	4972	cmd.exe	98
PID 4972 wrote to memory of 1332	4972	cmd.exe	98

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1332	attrib.exe
740	attrib.exe

C:\Users\Admin\AppData\Local\Temp\bb6193012cbb778a7f50179459827929_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bb6193012cbb778a7f50179459827929_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3236
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c move /y "C:\USERS\ADMIN\APPDATA\LOCAL\TEMP\bb6193012cbb778a7f50179459827929_JaffaCakes118.exe" "C:\Program Files\Common Files\Program Shared\Isass.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: RenamesItself
  PID:3248
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c reg add "hkey_local_machine\software\microsoft\windows nt\currentversion\winlogon" /v Shell /t reg_sz /d "Explorer.exe, C:\Program Files\Common Files\Program Shared\Isass.exe" /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4336
- - C:\Windows\SysWOW64\reg.exe
    reg add "hkey_local_machine\software\microsoft\windows nt\currentversion\winlogon" /v Shell /t reg_sz /d "Explorer.exe, C:\Program Files\Common Files\Program Shared\Isass.exe" /f
    3⤵
    - Modifies WinLogon for persistence
    - System Location Discovery: System Language Discovery
    PID:3776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c reg add "hkey_local_machine\software\microsoft\windows nt\currentversion\winlogon " /v Shell /t reg_sz /d "Explorer.exe, C:\Program Files\Common Files\Program Shared\Isass.exe" /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4280
- - C:\Windows\SysWOW64\reg.exe
    reg add "hkey_local_machine\software\microsoft\windows nt\currentversion\winlogon " /v Shell /t reg_sz /d "Explorer.exe, C:\Program Files\Common Files\Program Shared\Isass.exe" /f
    3⤵
    - Modifies WinLogon for persistence
    - System Location Discovery: System Language Discovery
    PID:2012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Program Files\Common Files\Program Shared\Isass.exe"
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3092
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h "C:\Program Files\Common Files\Program Shared\Isass.exe"
    3⤵
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:740
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Program Files\Common Files\Program Shared"
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4972
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h "C:\Program Files\Common Files\Program Shared"
    3⤵
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:1332

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3236-0-0x0000000002A80000-0x0000000002A81000-memory.dmp

Filesize
4KB

Download
memory/3236-1-0x0000000000400000-0x0000000000D45000-memory.dmp

Filesize
9.3MB

Download
memory/3236-3-0x0000000000400000-0x0000000000D45000-memory.dmp

Filesize
9.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads