3888016b469612d3048a7470374a693654b697150792685840a1db13a64f8416

Analysis

max time kernel
149s
max time network
19s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
17-08-2024 13:59

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General

Target

a2cfd35262bf541f13b006f7dddc95ae_JaffaCakes118.exe
Size

438KB
MD5

a2cfd35262bf541f13b006f7dddc95ae
SHA1

23661ceecf8c4c474e1e5b20476891a2e0a8d9a3
SHA256

3888016b469612d3048a7470374a693654b697150792685840a1db13a64f8416
SHA512

bc1645ebb3ee8c75fd7975535c4e3decc2d61905841e17f58b87164fd5684d48e28c7ae1d6aed29c3b2c1b2e384486e21439b1223b8acd02701e8a51ddfdf6f8
SSDEEP

12288:rzMAVuPisc+0vxHfzDSzE2fasicGeERhbb3xTXJlOwT:rQIuPischxf642yneERJ9JlO

Score

8^/10

discovery evasion persistence upx

Malware Config

Signatures

Disables Task Manager via registry modification
evasion

Executes dropped EXE 1 IoCs

pid	Process
2196	KLlVSYppatgy.exe

Loads dropped DLL 2 IoCs

pid	Process
1736	a2cfd35262bf541f13b006f7dddc95ae_JaffaCakes118.exe
1736	a2cfd35262bf541f13b006f7dddc95ae_JaffaCakes118.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1736-2-0x0000000000600000-0x0000000000673000-memory.dmp	upx
behavioral1/memory/1736-4-0x0000000000600000-0x0000000000673000-memory.dmp	upx
behavioral1/memory/2196-16-0x0000000000600000-0x0000000000673000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\KLlVSYppatgy = "C:\\ProgramData\\KLlVSYppatgy.exe"	a2cfd35262bf541f13b006f7dddc95ae_JaffaCakes118.exe

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	a2cfd35262bf541f13b006f7dddc95ae_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	a2cfd35262bf541f13b006f7dddc95ae_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	KLlVSYppatgy.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	KLlVSYppatgy.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 2 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	a2cfd35262bf541f13b006f7dddc95ae_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	KLlVSYppatgy.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Internet Explorer\Download	a2cfd35262bf541f13b006f7dddc95ae_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Internet Explorer\Download\CheckExeSignatures = "no"	a2cfd35262bf541f13b006f7dddc95ae_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1736	a2cfd35262bf541f13b006f7dddc95ae_JaffaCakes118.exe
1736	a2cfd35262bf541f13b006f7dddc95ae_JaffaCakes118.exe
1736	a2cfd35262bf541f13b006f7dddc95ae_JaffaCakes118.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe
2196	KLlVSYppatgy.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1736	a2cfd35262bf541f13b006f7dddc95ae_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 2196	1736	a2cfd35262bf541f13b006f7dddc95ae_JaffaCakes118.exe	30
PID 1736 wrote to memory of 2196	1736	a2cfd35262bf541f13b006f7dddc95ae_JaffaCakes118.exe	30
PID 1736 wrote to memory of 2196	1736	a2cfd35262bf541f13b006f7dddc95ae_JaffaCakes118.exe	30
PID 1736 wrote to memory of 2196	1736	a2cfd35262bf541f13b006f7dddc95ae_JaffaCakes118.exe	30

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	a2cfd35262bf541f13b006f7dddc95ae_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr = "1"	a2cfd35262bf541f13b006f7dddc95ae_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\a2cfd35262bf541f13b006f7dddc95ae_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a2cfd35262bf541f13b006f7dddc95ae_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1736
- C:\ProgramData\KLlVSYppatgy.exe
  "C:\ProgramData\KLlVSYppatgy.exe"
  2⤵
  - Executes dropped EXE
  - Maps connected drives based on registry
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2196

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

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

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

\ProgramData\KLlVSYppatgy.exe

Filesize
438KB

MD5
a2cfd35262bf541f13b006f7dddc95ae

SHA1
23661ceecf8c4c474e1e5b20476891a2e0a8d9a3

SHA256
3888016b469612d3048a7470374a693654b697150792685840a1db13a64f8416

SHA512
bc1645ebb3ee8c75fd7975535c4e3decc2d61905841e17f58b87164fd5684d48e28c7ae1d6aed29c3b2c1b2e384486e21439b1223b8acd02701e8a51ddfdf6f8

Download Submit
memory/1736-0-0x00000000005A0000-0x00000000005FA000-memory.dmp

Filesize
360KB

Download
memory/1736-1-0x0000000000648000-0x0000000000668000-memory.dmp

Filesize
128KB

Download
memory/1736-2-0x0000000000600000-0x0000000000673000-memory.dmp

Filesize
460KB

Download
memory/1736-3-0x00000000005A0000-0x00000000005FA000-memory.dmp

Filesize
360KB

Download
memory/1736-4-0x0000000000600000-0x0000000000673000-memory.dmp

Filesize
460KB

Download
memory/2196-15-0x0000000000600000-0x0000000000673000-memory.dmp

Filesize
460KB

Download
memory/2196-16-0x0000000000600000-0x0000000000673000-memory.dmp

Filesize
460KB

Download