81d8bd4180835a1b3fe27e4b63a683d84d9110e782b3ed99c7bff46a1f160f07

General

Target

5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe
Size

240KB
MD5

5cbd36d95b2329c02152112a957ce639
SHA1

91e92845b83e662e127af8b046c353c4b396335d
SHA256

81d8bd4180835a1b3fe27e4b63a683d84d9110e782b3ed99c7bff46a1f160f07
SHA512

45205ed34f2b074a1aaf2dea5e2e87eba490323e4ffccd035b73e3fa2fbf6934ce3d84267eaf70d626b082416476f0e0cc2a9ca79811b8a9f0a3c1b550309f66
SSDEEP

6144:qdNYeBb+Zbl8EhDKf100QRchpvhYt4tZrsle:6N2bw00QChpvSSYe

Score

8^/10

discovery evasion persistence trojan upx

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	5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\uvdyaqbf = "C:\\Windows\\SysWOW64\\msihndo.exe"	5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	msihndo.exe

Checks BIOS information in registry 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2660	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2728	msihndo.exe

Loads dropped DLL 2 IoCs

pid	Process
2556	5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe
2556	5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2556-4-0x00000000004B0000-0x0000000000557000-memory.dmp	upx
behavioral1/memory/2556-3-0x00000000004B0000-0x0000000000557000-memory.dmp	upx
behavioral1/memory/2556-0-0x00000000004B0000-0x0000000000557000-memory.dmp	upx
behavioral1/memory/2556-7-0x00000000004B0000-0x0000000000557000-memory.dmp	upx
behavioral1/memory/2556-6-0x00000000004B0000-0x0000000000557000-memory.dmp	upx
behavioral1/memory/2556-27-0x00000000004B0000-0x0000000000557000-memory.dmp	upx
behavioral1/memory/2556-29-0x00000000004B0000-0x0000000000557000-memory.dmp	upx

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\msihndo.exe	5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\msihndo.exe	5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe

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

System Information Discovery
T1082

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2828	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2556	5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe
2556	5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2556	5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2728	msihndo.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2556 wrote to memory of 2728	2556	5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe	31
PID 2556 wrote to memory of 2728	2556	5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe	31
PID 2556 wrote to memory of 2728	2556	5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe	31
PID 2556 wrote to memory of 2728	2556	5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe	31
PID 2728 wrote to memory of 2828	2728	msihndo.exe	33
PID 2728 wrote to memory of 2828	2728	msihndo.exe	33
PID 2728 wrote to memory of 2828	2728	msihndo.exe	33
PID 2728 wrote to memory of 2828	2728	msihndo.exe	33
PID 2556 wrote to memory of 2660	2556	5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe	35
PID 2556 wrote to memory of 2660	2556	5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe	35
PID 2556 wrote to memory of 2660	2556	5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe	35
PID 2556 wrote to memory of 2660	2556	5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe	35

C:\Users\Admin\AppData\Local\Temp\5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe"
1⤵
- Adds policy Run key to start application
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2556
- C:\Windows\SysWOW64\msihndo.exe
  C:\Windows\SysWOW64\msihndo.exe
  2⤵
  - Drops file in Drivers directory
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2728
- - C:\Windows\SysWOW64\ipconfig.exe
    "C:\Windows\system32\ipconfig.exe" /flushdns
    3⤵
    - Gathers network information
    PID:2828
- C:\Windows\SysWOW64\cmd.exe
  /c C:\Users\Admin\AppData\Local\Temp\~unins4311.bat "C:\Users\Admin\AppData\Local\Temp\5cbd36d95b2329c02152112a957ce639_JaffaCakes118.exe"
  2⤵
  - Deletes itself
  PID:2660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

4

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\~unins4311.bat

Filesize
49B

MD5
9e0a2f5ab30517809b95a1ff1dd98c53

SHA1
5c1eefdf10e67d1e9216e2e3f5e92352d583c9ce

SHA256
97ac9fee75a1f7b63b3115e9c4fb9dda80b1caba26d2fb51325670dee261fe32

SHA512
e959cc1fd48fb1cccf135a697924c775a3812bab211fc7f9b00c5a9d617261d84c5d6f7cb548774c1e8f46811b06ca39c5603d0e10cbcb7b805f9abbe49b9b42

Download Submit
\Windows\SysWOW64\msihndo.exe

Filesize
87KB

MD5
c61207479bc543e8dda0e9458534ec6e

SHA1
6f151f01fc911a95fa505abed40530f93fc476dc

SHA256
3812682380f47c118a5a5ccd87ec7f34f8a9b60409d761b12faff63ebecf2cc5

SHA512
5f6b37d9e38c005c1ee1254f32082395d58d2fbf13948b079a36b7ec63007f47df89d1ef2a3034d3f74abd53f6254a0d1454dfec2bb5182d7e6579357569304e

Download Submit
memory/2556-4-0x00000000004B0000-0x0000000000557000-memory.dmp

Filesize
668KB

Download
memory/2556-3-0x00000000004B0000-0x0000000000557000-memory.dmp

Filesize
668KB

Download
memory/2556-0-0x00000000004B0000-0x0000000000557000-memory.dmp

Filesize
668KB

Download
memory/2556-8-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2556-7-0x00000000004B0000-0x0000000000557000-memory.dmp

Filesize
668KB

Download
memory/2556-6-0x00000000004B0000-0x0000000000557000-memory.dmp

Filesize
668KB

Download
memory/2556-5-0x00000000001B0000-0x00000000001E6000-memory.dmp

Filesize
216KB

Download
memory/2556-27-0x00000000004B0000-0x0000000000557000-memory.dmp

Filesize
668KB

Download
memory/2556-28-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2556-29-0x00000000004B0000-0x0000000000557000-memory.dmp

Filesize
668KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads