5c0f93efb52051a3937a738c1fd8ae68b7f3c869cc1ffefc1b4c9fcc4a66c168

General

Target

84af2ab703050f1cec176535a9c5d12e_JaffaCakes118.exe
Size

31KB
MD5

84af2ab703050f1cec176535a9c5d12e
SHA1

2a31814559d5480961dd7627df8e239672e7b68e
SHA256

5c0f93efb52051a3937a738c1fd8ae68b7f3c869cc1ffefc1b4c9fcc4a66c168
SHA512

90e554a426ba0a7f17708800db8eef6dcd4b1762bb620c40396303dabbf4e41799bd868691f9eb5607b49f3998ecbdb85f7f3872c41cb82453ab94428f64ea98
SSDEEP

768:uSb7BvPZF1z3Bl4Hyyc8KB5Yg8yvepyq:bHtTJ3BlKg8KOAwX

Score

8^/10

adware discovery persistence privilege_escalation stealer upx

Malware Config

Signatures

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
1692	cmd.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1316-1-0x0000000000400000-0x0000000000420000-memory.dmp	upx
behavioral1/memory/1316-10-0x0000000000400000-0x0000000000420000-memory.dmp	upx

Installs/modifies Browser Helper Object 2 TTPs 5 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{18DF081C-E8AD-4283-A596-FA578C2EBDC3}	84af2ab703050f1cec176535a9c5d12e_JaffaCakes118.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{B4F3A835-0E21-4959-BA22-42B3008E02FF}	84af2ab703050f1cec176535a9c5d12e_JaffaCakes118.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects	84af2ab703050f1cec176535a9c5d12e_JaffaCakes118.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{72853161-30C5-4D22-B7F9-0BBC1D38A37E}	84af2ab703050f1cec176535a9c5d12e_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	84af2ab703050f1cec176535a9c5d12e_JaffaCakes118.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\mmsjxtjxt.dll	84af2ab703050f1cec176535a9c5d12e_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\DefaultColor.info	84af2ab703050f1cec176535a9c5d12e_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	84af2ab703050f1cec176535a9c5d12e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Toolbar	84af2ab703050f1cec176535a9c5d12e_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1316 wrote to memory of 1692	1316	84af2ab703050f1cec176535a9c5d12e_JaffaCakes118.exe	30
PID 1316 wrote to memory of 1692	1316	84af2ab703050f1cec176535a9c5d12e_JaffaCakes118.exe	30
PID 1316 wrote to memory of 1692	1316	84af2ab703050f1cec176535a9c5d12e_JaffaCakes118.exe	30
PID 1316 wrote to memory of 1692	1316	84af2ab703050f1cec176535a9c5d12e_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\84af2ab703050f1cec176535a9c5d12e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\84af2ab703050f1cec176535a9c5d12e_JaffaCakes118.exe"
1⤵
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of WriteProcessMemory
PID:1316
- C:\Windows\SysWOW64\cmd.exe
  cmd /c color.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Privilege Escalation

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\color.bat

Filesize
242B

MD5
02633cd5914f4bed2681cbc4d4b12b34

SHA1
7e63a415c7bd512d4037a55028cf672c151388d0

SHA256
cf79ef513f228ef0ccfb50746b150bd9c8943c9336484cd1b903ce560bbcd3ce

SHA512
6e534004ecaece2fc5a1891f33e06bfde4f3cac46bf67543f58abe48cba846624ac66842a2abd99dcb3654634dfd62e717ba7aa400b3bf79c27f04961181801a

Download Submit
memory/1316-1-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1316-10-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads