0953b0a89d591cb2506c5234b11081cddd1097484ba08ae9a95a48bcf581a2e9

Analysis

max time kernel
134s
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
18/08/2024, 04:06

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General

Target

a551c748c194a54a1aaccef54c2827f9_JaffaCakes118.exe
Size

11KB
MD5

a551c748c194a54a1aaccef54c2827f9
SHA1

fd2621a438bac3e1b020956c15625f8eac3fb2b0
SHA256

0953b0a89d591cb2506c5234b11081cddd1097484ba08ae9a95a48bcf581a2e9
SHA512

bac9ca704cac083c842d0d8956759283d4c02f2f08980ef27a1c9e7a437ca9e9b4a279e64b49dd7ef3e44080f39f183fe7e37d92e9f49872cf753b8850896933
SSDEEP

192:pauKHU3qWAtzGYQfy+F3S582xwDin+fZxps3dgvfZHDTbKNNFv1AJKmVJNbXCSEa:pn2U3Gt6lq+082YTZxp5ytiKmXkERaY

Score

8^/10

defense_evasion discovery persistence

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\explorer\run	isnotify.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\kernel32.dll = "C:\\Windows\\SysWOW64\\isnotify.exe"	isnotify.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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	a551c748c194a54a1aaccef54c2827f9_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
5100	isnotify.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\isnotify.exe	a551c748c194a54a1aaccef54c2827f9_JaffaCakes118.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 3 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	a551c748c194a54a1aaccef54c2827f9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	isnotify.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3940	a551c748c194a54a1aaccef54c2827f9_JaffaCakes118.exe
3940	a551c748c194a54a1aaccef54c2827f9_JaffaCakes118.exe
3940	a551c748c194a54a1aaccef54c2827f9_JaffaCakes118.exe
3940	a551c748c194a54a1aaccef54c2827f9_JaffaCakes118.exe
3940	a551c748c194a54a1aaccef54c2827f9_JaffaCakes118.exe
3940	a551c748c194a54a1aaccef54c2827f9_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3940	a551c748c194a54a1aaccef54c2827f9_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3940 wrote to memory of 5100	3940	a551c748c194a54a1aaccef54c2827f9_JaffaCakes118.exe	84
PID 3940 wrote to memory of 5100	3940	a551c748c194a54a1aaccef54c2827f9_JaffaCakes118.exe	84
PID 3940 wrote to memory of 5100	3940	a551c748c194a54a1aaccef54c2827f9_JaffaCakes118.exe	84
PID 3940 wrote to memory of 756	3940	a551c748c194a54a1aaccef54c2827f9_JaffaCakes118.exe	87
PID 3940 wrote to memory of 756	3940	a551c748c194a54a1aaccef54c2827f9_JaffaCakes118.exe	87
PID 3940 wrote to memory of 756	3940	a551c748c194a54a1aaccef54c2827f9_JaffaCakes118.exe	87

C:\Users\Admin\AppData\Local\Temp\a551c748c194a54a1aaccef54c2827f9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a551c748c194a54a1aaccef54c2827f9_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3940
- C:\Windows\SysWOW64\isnotify.exe
  C:\Windows\system32\isnotify.exe
  2⤵
  - Adds policy Run key to start application
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:5100
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\A551C7~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  PID:756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

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

Replay Monitor

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Downloads

C:\Windows\SysWOW64\isnotify.exe

Filesize
8KB

MD5
d92dbe512681ff7469e923738bf26281

SHA1
aa171b30f00c972c56501d11a2426ab52fd24c31

SHA256
e4ba76ebeb58947630815de3b323bd44358e2734aa2aa7215fc02be9aae5f2a4

SHA512
83c33442004e9dfbd395e2edadd0b32aa589eaae390da6e353626319fde77835b61d6586af44f2383f766f8087c6395171c9d2d0808c587b83a59209addaa18a

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