3db0bf8142cf00967c30f7cfdbfaec2a97d01eaa8fc3dfbdb9a358a8fc59710e

Analysis

max time kernel
150s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
10/08/2024, 12:58

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General

Target

86249e56151ac2730b1dc7d13e03d457_JaffaCakes118.exe
Size

72KB
MD5

86249e56151ac2730b1dc7d13e03d457
SHA1

8bfa1a1fa023625e6d82c7d6ce608a7d3ffc69c8
SHA256

3db0bf8142cf00967c30f7cfdbfaec2a97d01eaa8fc3dfbdb9a358a8fc59710e
SHA512

9b2b141d0f61ce75c0c0d0902d6501e69684ca1880da9ae91ec70c3751e7a6cd86171ce7836d2f1374bfe285fe117e260363582440c85df94701cfedf047a8f2
SSDEEP

1536:sgGO3GOz4f2CHG15KOLPMZZi1PIXk0dFpiJ8hIwanDiIpuNVuxNZZ4:fPg2Cm2ySZiW0yIffpuIDW

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
440	86249e56151ac2730b1dc7d13e03d457_JaffaCakes118.exe
4084	rundll32.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/440-2-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/440-1-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/440-5-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/440-11-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/440-12-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/440-13-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/440-19-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/4084-29-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/4084-33-0x0000000010000000-0x0000000010014000-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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MSServer = "rundll32.exe C:\\Windows\\system32\\xxyaxUlL.dll,#1"	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ljJYQHyA.dll	86249e56151ac2730b1dc7d13e03d457_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\xxyaxUlL.dll	86249e56151ac2730b1dc7d13e03d457_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\xxyaxUlL.dll	86249e56151ac2730b1dc7d13e03d457_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\ljJYQHyA.dll	86249e56151ac2730b1dc7d13e03d457_JaffaCakes118.exe

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	86249e56151ac2730b1dc7d13e03d457_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6CBE6300-759B-447A-B406-31B86293E390}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6CBE6300-759B-447A-B406-31B86293E390}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6CBE6300-759B-447A-B406-31B86293E390}\InprocServer32\ = "C:\\Windows\\SysWow64\\xxyaxUlL.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6CBE6300-759B-447A-B406-31B86293E390}\InprocServer32\ThreadingModel = "Both"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
440	86249e56151ac2730b1dc7d13e03d457_JaffaCakes118.exe
440	86249e56151ac2730b1dc7d13e03d457_JaffaCakes118.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe
4084	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	440	86249e56151ac2730b1dc7d13e03d457_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
440	86249e56151ac2730b1dc7d13e03d457_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 440 wrote to memory of 624	440	86249e56151ac2730b1dc7d13e03d457_JaffaCakes118.exe	5
PID 440 wrote to memory of 4084	440	86249e56151ac2730b1dc7d13e03d457_JaffaCakes118.exe	103
PID 440 wrote to memory of 4084	440	86249e56151ac2730b1dc7d13e03d457_JaffaCakes118.exe	103
PID 440 wrote to memory of 4084	440	86249e56151ac2730b1dc7d13e03d457_JaffaCakes118.exe	103
PID 440 wrote to memory of 4620	440	86249e56151ac2730b1dc7d13e03d457_JaffaCakes118.exe	104
PID 440 wrote to memory of 4620	440	86249e56151ac2730b1dc7d13e03d457_JaffaCakes118.exe	104
PID 440 wrote to memory of 4620	440	86249e56151ac2730b1dc7d13e03d457_JaffaCakes118.exe	104

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:624

C:\Users\Admin\AppData\Local\Temp\86249e56151ac2730b1dc7d13e03d457_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\86249e56151ac2730b1dc7d13e03d457_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:440
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Windows\system32\xxyaxUlL.dll,a
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:4084
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\removalfile.bat "C:\Users\Admin\AppData\Local\Temp\86249e56151ac2730b1dc7d13e03d457_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4620

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4112,i,6510295916244954942,10164894160290787457,262144 --variations-seed-version --mojo-platform-channel-handle=4128 /prefetch:8
1⤵
PID:2972

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

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:\Users\Admin\AppData\Local\Temp\removalfile.bat

Filesize
43B

MD5
9a7ef09167a6f4433681b94351509043

SHA1
259b1375ed8e84943ca1d42646bb416325c89e12

SHA256
d5739a0510d89da572eb0b0d394d4fb4dd361cd9ee0144b9b31c590df93c3be7

SHA512
96b84cd88a0e4b7c1122af3ed6ce5edf0a9a4e9bf79575eadfac16b2c46f1278d57755d29f21d7c6dcb4403be24b7ac7da4837c6cc9c602342a8f2b8e54883df

Download Submit
C:\Windows\SysWOW64\ljJYQHyA.dll

Filesize
43KB

MD5
bf3d8b9fed14bfdd46c6dec39600bd33

SHA1
d1e17284a2f12641fe83bcca42de3700f79b2070

SHA256
b3020505a0f6ff773fa9bf659f2df55c79676857a12709aee4dc93c5168d68a6

SHA512
d0acf09ebd1003027225a0017927c5f94d8006257acbf9c516a6cd43ee6b4cb01d2e25f777c9f2fe8dcd66744549b0fe7d9fde783420725b517d5f43fb94c796

Download Submit
memory/440-12-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/440-13-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/440-5-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/440-4-0x0000000000407000-0x0000000000413000-memory.dmp

Filesize
48KB

Download
memory/440-1-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/440-11-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/440-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/440-3-0x00000000005C0000-0x00000000005D0000-memory.dmp

Filesize
64KB

Download
memory/440-19-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/440-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4084-30-0x0000000001380000-0x0000000001381000-memory.dmp

Filesize
4KB

Download
memory/4084-29-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/4084-31-0x000000001000E000-0x0000000010013000-memory.dmp

Filesize
20KB

Download
memory/4084-33-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download