0687821fa6741bdfa0da567e2013fbd566bca6ed8562f628ceb0f9c9c83905c3

Analysis

max time kernel
121s
max time network
126s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
22/08/2024, 17:35

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General

Target

b8835850e90d01a768d1f21187a1ce0f_JaffaCakes118.exe
Size

46KB
MD5

b8835850e90d01a768d1f21187a1ce0f
SHA1

190166d943eccf210cb23c5ef674d1de483f820c
SHA256

0687821fa6741bdfa0da567e2013fbd566bca6ed8562f628ceb0f9c9c83905c3
SHA512

71808d70c2cec9b96ef9fe911330d54c4c875a6c16c8920303b1b17544ff222fe53ee1d10dbbb5298c5697d5c473a49634314d50060c3eb7fe03548c3c48ea4d
SSDEEP

768:ZlBBfhgAroQ/upHfuV6/t8kDwuKu/RYn/xb3EQuOIpUVAFYMq:ZvBfCkNuN2VKt8kDKU4xb3EyIq2FYMq

Score

8^/10

discovery persistence

Malware Config

Signatures

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\kusn33sd\ImagePath = "C:\\Windows\\system32\\kusn33sd.exe -j"	b8835850e90d01a768d1f21187a1ce0f_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2736	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
3032	kusn33sd.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\KillMe.bat	b8835850e90d01a768d1f21187a1ce0f_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\kusn433sd3.dll	kusn33sd.exe
File created	C:\Windows\SysWOW64\kusn33sd.exe	b8835850e90d01a768d1f21187a1ce0f_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\kusn33sd.exe	b8835850e90d01a768d1f21187a1ce0f_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\kusn33sd.exe	kusn33sd.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	b8835850e90d01a768d1f21187a1ce0f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kusn33sd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2324	b8835850e90d01a768d1f21187a1ce0f_JaffaCakes118.exe
3032	kusn33sd.exe
3032	kusn33sd.exe
3032	kusn33sd.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 2736	2324	b8835850e90d01a768d1f21187a1ce0f_JaffaCakes118.exe	31
PID 2324 wrote to memory of 2736	2324	b8835850e90d01a768d1f21187a1ce0f_JaffaCakes118.exe	31
PID 2324 wrote to memory of 2736	2324	b8835850e90d01a768d1f21187a1ce0f_JaffaCakes118.exe	31
PID 2324 wrote to memory of 2736	2324	b8835850e90d01a768d1f21187a1ce0f_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\b8835850e90d01a768d1f21187a1ce0f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b8835850e90d01a768d1f21187a1ce0f_JaffaCakes118.exe"
1⤵
- Sets service image path in registry
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Windows\system32\KillMe.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2736

C:\Windows\SysWOW64\kusn33sd.exe
C:\Windows\SysWOW64\kusn33sd.exe -j
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:3032

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

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Downloads

C:\Windows\SysWOW64\KillMe.bat

Filesize
239B

MD5
20649b77eba8f3f4bf5763cc30629117

SHA1
295d01b239bda9851dcaa1d9a848875908a700c3

SHA256
3e8c58bdf6221ac2af55def0d00d0c349c69e4f86a589ba606355f27e0ecd1c0

SHA512
1978aae7d094ad0769bb2d3708b441cb468c3c3e598d8e7a3adb64e100a95a2a5d9ca4867d39c129ba26f813a8bb81b2cd9519f58be6ad45ec1635ac737a7b16

Download Submit
C:\Windows\SysWOW64\kusn33sd.exe

Filesize
46KB

MD5
b8835850e90d01a768d1f21187a1ce0f

SHA1
190166d943eccf210cb23c5ef674d1de483f820c

SHA256
0687821fa6741bdfa0da567e2013fbd566bca6ed8562f628ceb0f9c9c83905c3

SHA512
71808d70c2cec9b96ef9fe911330d54c4c875a6c16c8920303b1b17544ff222fe53ee1d10dbbb5298c5697d5c473a49634314d50060c3eb7fe03548c3c48ea4d

Download Submit
memory/2324-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2324-2-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/3032-5-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/3032-6-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/3032-16-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download