aa6f8416b5fba396fdc835a73a1a985aedd136d444edeaa49d54249fdc6c6aaf

General

Target

ecdec207d42d3576b5c02563d08c106b_JaffaCakes118.exe
Size

38KB
MD5

ecdec207d42d3576b5c02563d08c106b
SHA1

8f0e9cc51d7315bc7b65bb0b5b8042dac70b5042
SHA256

aa6f8416b5fba396fdc835a73a1a985aedd136d444edeaa49d54249fdc6c6aaf
SHA512

3efb7d60d85022f44b18bc580a7dcf02d81f2f2ff06b96bd392baa0a4c7d884935f603df1f59a5388d54a832d0d69156d209c4190bc876c47790554a35da4a79
SSDEEP

768:5A6cObHTNNT6iAdd+WttpaX8rPiwzImZIiWIEnYP4u7anY:53c4z7g/+0pb7iw0ibE64VY

Score

10^/10

defense_evasion discovery evasion persistence privilege_escalation trojan upx

Malware Config

Signatures

UAC bypass 3 TTPs 3 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	ecdec207d42d3576b5c02563d08c106b_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	ecdec207d42d3576b5c02563d08c106b_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	ecdec207d42d3576b5c02563d08c106b_JaffaCakes118.exe

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Deletes itself 1 IoCs

pid	Process
2776	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
2776	cmd.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2852-1-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral1/memory/2852-5-0x0000000000400000-0x0000000000426000-memory.dmp	upx

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	ecdec207d42d3576b5c02563d08c106b_JaffaCakes118.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\WindowsEx.dll	ecdec207d42d3576b5c02563d08c106b_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\WindowsEx.dll	ecdec207d42d3576b5c02563d08c106b_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\fonts\0417.fon	ecdec207d42d3576b5c02563d08c106b_JaffaCakes118.exe

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ecdec207d42d3576b5c02563d08c106b_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2852	ecdec207d42d3576b5c02563d08c106b_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2852	ecdec207d42d3576b5c02563d08c106b_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2776	cmd.exe
2776	cmd.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2852 wrote to memory of 2776	2852	ecdec207d42d3576b5c02563d08c106b_JaffaCakes118.exe	30
PID 2852 wrote to memory of 2776	2852	ecdec207d42d3576b5c02563d08c106b_JaffaCakes118.exe	30
PID 2852 wrote to memory of 2776	2852	ecdec207d42d3576b5c02563d08c106b_JaffaCakes118.exe	30
PID 2852 wrote to memory of 2776	2852	ecdec207d42d3576b5c02563d08c106b_JaffaCakes118.exe	30

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	ecdec207d42d3576b5c02563d08c106b_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	ecdec207d42d3576b5c02563d08c106b_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	ecdec207d42d3576b5c02563d08c106b_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\ecdec207d42d3576b5c02563d08c106b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ecdec207d42d3576b5c02563d08c106b_JaffaCakes118.exe"
1⤵
- UAC bypass
- Checks whether UAC is enabled
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2852
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del "C:\Users\Admin\AppData\Local\Temp\ecdec207d42d3576b5c02563d08c106b_JaffaCakes118.exe"
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Privilege Escalation

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

1

T1562

Disable or Modify Tools

1

T1562.001

Indicator Removal

1

T1070

File Deletion

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\WindowsEx.dll

Filesize
100KB

MD5
19aea6f1bcd8651b20056518802deda7

SHA1
f488be9dda6c80e283c843169f49abc0c73f900d

SHA256
742a3429917f7a9b7a64fc97d47d4d21337f0aafc60dae06f6f2098e5692ea84

SHA512
ff41e0ec5cbfd821f3babf903b34ccec546e74844068d600bc334086da5e5b16c4667f0114c88ceab8d8fc1d2f2344021f3fb293abc4a5758cdf9e6ebe413b1b

Download Submit
memory/2776-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2776-9-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2852-1-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2852-5-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads