104c58e7c6acb88394ce8bec558cf7b7fc0a1c6a955b7b57aa4671dd0dbba62d

General

Target

21a5a8b602f3b303b86dc709ab5045a3_JaffaCakes118.dll
Size

88KB
MD5

21a5a8b602f3b303b86dc709ab5045a3
SHA1

bb4fcf2e37bca0613ae7a4ab2f0727b429e324e1
SHA256

104c58e7c6acb88394ce8bec558cf7b7fc0a1c6a955b7b57aa4671dd0dbba62d
SHA512

e8694d9db0c2c9b28cf4f0ed4d95947b09d1316a8da001d6b8655f7d36cd2468bc8cf98dafbab42dab73cfd482db0e94caa2a3a6c7b5bc68106c234c4825c713
SSDEEP

1536:uxvHuzIQ3vGsJiZEs8JMx9Uj1ud+Gg2hv9SvWzFbociEQEDzgC7/l:uxg3+a0x9Uj4+Gg41MWzFcciYgs

Score

8^/10

evasion persistence privilege_escalation upx

Malware Config

Signatures

Blocklisted process makes network request 15 IoCs

flow	pid	Process
6	292	rundll32.exe
7	292	rundll32.exe
8	292	rundll32.exe
9	292	rundll32.exe
18	292	rundll32.exe
20	292	rundll32.exe
21	292	rundll32.exe
23	292	rundll32.exe
24	292	rundll32.exe
31	292	rundll32.exe
34	292	rundll32.exe
35	292	rundll32.exe
37	292	rundll32.exe
39	292	rundll32.exe
40	292	rundll32.exe

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2612	netsh.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/292-3-0x00000000001C0000-0x00000000001ED000-memory.dmp	upx
behavioral1/memory/292-4-0x00000000001C0000-0x00000000001ED000-memory.dmp	upx
behavioral1/memory/292-11-0x00000000001C0000-0x00000000001ED000-memory.dmp	upx

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
3	checkip.dyndns.org
36	checkip.dyndns.org

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Security	rundll32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Security\installation_id = 51a1b12009821240bcedaaf067dd3103	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 292	2320	rundll32.exe	28
PID 2320 wrote to memory of 292	2320	rundll32.exe	28
PID 2320 wrote to memory of 292	2320	rundll32.exe	28
PID 2320 wrote to memory of 292	2320	rundll32.exe	28
PID 2320 wrote to memory of 292	2320	rundll32.exe	28
PID 2320 wrote to memory of 292	2320	rundll32.exe	28
PID 2320 wrote to memory of 292	2320	rundll32.exe	28
PID 292 wrote to memory of 2612	292	rundll32.exe	29
PID 292 wrote to memory of 2612	292	rundll32.exe	29
PID 292 wrote to memory of 2612	292	rundll32.exe	29
PID 292 wrote to memory of 2612	292	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\21a5a8b602f3b303b86dc709ab5045a3_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\21a5a8b602f3b303b86dc709ab5045a3_JaffaCakes118.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Modifies Internet Explorer settings
  - Suspicious use of WriteProcessMemory
  PID:292
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\SysWOW64\rundll32.exe" "Explorer" enable
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:2612

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/292-3-0x00000000001C0000-0x00000000001ED000-memory.dmp

Filesize
180KB

Download
memory/292-2-0x00000000001B0000-0x00000000001DD000-memory.dmp

Filesize
180KB

Download
memory/292-1-0x00000000001B0000-0x00000000001DD000-memory.dmp

Filesize
180KB

Download
memory/292-0-0x00000000001B0000-0x00000000001DD000-memory.dmp

Filesize
180KB

Download
memory/292-4-0x00000000001C0000-0x00000000001ED000-memory.dmp

Filesize
180KB

Download
memory/292-6-0x00000000001B0000-0x00000000001DD000-memory.dmp

Filesize
180KB

Download
memory/292-7-0x00000000001B0000-0x00000000001DD000-memory.dmp

Filesize
180KB

Download
memory/292-8-0x00000000001B0000-0x00000000001DD000-memory.dmp

Filesize
180KB

Download
memory/292-11-0x00000000001C0000-0x00000000001ED000-memory.dmp

Filesize
180KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads