c77cb5c5b68c9dd543c0939a7677aa68316215a07f53ee46887f77722364b196

General

Target

0e80b0bee69ae7943282e5f3989b9175_JaffaCakes118.exe
Size

95KB
MD5

0e80b0bee69ae7943282e5f3989b9175
SHA1

23da5ada2910d9a8f477163617c2c73012cb56b6
SHA256

c77cb5c5b68c9dd543c0939a7677aa68316215a07f53ee46887f77722364b196
SHA512

a6d51cf7f632f3af5ebd4493e5f9b8188a18f728bc45e475d26a638775fafabd9c398c42950bd94f46f36d0a9bb41b2d3efd944c27e8f3aa7ff2816855327c29
SSDEEP

1536:giALOEJuUuTdsiuGP0Lv78qUPIPWSxcM9+meQwTttEf5vLvkV+0jA+KRKugBA8Iq:rALOE6Td3u6E7RITSKM9+GwTvEhvLvKn

Score

7^/10

adware discovery persistence stealer upx

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
2920	0e80b0bee69ae7943282e5f3989b9175_JaffaCakes118.exe
4788	rundll32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\fqswlye.dll = "C:\\Windows\\system32\\rundll32.exe C:\\Windows\\system32\\fqswlye.dll,yxlfvib"	0e80b0bee69ae7943282e5f3989b9175_JaffaCakes118.exe

Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

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

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{209DE62F-6D8B-DE3B-A9A2-0A9FD44C837E}	0e80b0bee69ae7943282e5f3989b9175_JaffaCakes118.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\fqswlye.dll	0e80b0bee69ae7943282e5f3989b9175_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\xxdohdc.dll	0e80b0bee69ae7943282e5f3989b9175_JaffaCakes118.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2920-0-0x0000000000400000-0x0000000000431000-memory.dmp	upx
behavioral2/memory/2920-12-0x0000000000400000-0x0000000000431000-memory.dmp	upx
behavioral2/memory/2920-18-0x0000000000400000-0x0000000000431000-memory.dmp	upx

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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0e80b0bee69ae7943282e5f3989b9175_JaffaCakes118.exe

Modifies registry class 6 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{209DE62F-6D8B-DE3B-A9A2-0A9FD44C837E}\InprocServer32\ThreadingModel = "Apartment"	0e80b0bee69ae7943282e5f3989b9175_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{209DE62F-6D8B-DE3B-A9A2-0A9FD44C837E}\InprocServer32	0e80b0bee69ae7943282e5f3989b9175_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	0e80b0bee69ae7943282e5f3989b9175_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	0e80b0bee69ae7943282e5f3989b9175_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{209DE62F-6D8B-DE3B-A9A2-0A9FD44C837E}	0e80b0bee69ae7943282e5f3989b9175_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{209DE62F-6D8B-DE3B-A9A2-0A9FD44C837E}\InprocServer32\ = "C:\\Windows\\SysWow64\\xxdohdc.dll"	0e80b0bee69ae7943282e5f3989b9175_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2920	0e80b0bee69ae7943282e5f3989b9175_JaffaCakes118.exe
2920	0e80b0bee69ae7943282e5f3989b9175_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2920 wrote to memory of 4788	2920	0e80b0bee69ae7943282e5f3989b9175_JaffaCakes118.exe	82
PID 2920 wrote to memory of 4788	2920	0e80b0bee69ae7943282e5f3989b9175_JaffaCakes118.exe	82
PID 2920 wrote to memory of 4788	2920	0e80b0bee69ae7943282e5f3989b9175_JaffaCakes118.exe	82

C:\Users\Admin\AppData\Local\Temp\0e80b0bee69ae7943282e5f3989b9175_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0e80b0bee69ae7943282e5f3989b9175_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2920
- C:\Windows\SysWOW64\rundll32.exe
  C:\Windows\system32\rundll32.exe C:\Windows\system32\fqswlye.dll,yxlfvib
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:4788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Browser Extensions

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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

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Downloads

C:\Windows\SysWOW64\fqswlye.dll

Filesize
58KB

MD5
7026cc7e18c74445861da75bef61c9e8

SHA1
08e06719c76dd3691e5f6c3a0e740d21fa5ed42c

SHA256
87257500e6d36bb25f5a6f56d19fabc5e67e82eedcc85120cb516a255e12602f

SHA512
5484c82a5baddef413648d762618ff623957393f5f96e88844c7ed7c4127223a9f20763112f021313886c4cdfed2ce84a96e0656f4c0be9306b1eeee6bb409ef

Download Submit
C:\Windows\SysWOW64\xxdohdc.dll

Filesize
70KB

MD5
fcdfe2453ddb9f6fe1d4544abe6439e3

SHA1
a02740c2bfc824f7059ff7a05139e5a93c94a079

SHA256
fca0c4f5f7912876efc311be1e78bafc617dc807aa84d47498609772fb31ea76

SHA512
0994aa16ab9eaf7b15888df3a8b38f23085f33bfb384451873a345966d5c7a5c50c43be628533adff3b978e132fe632024b1ef9504951e7f9a8517d19c7f379c

Download Submit
memory/2920-0-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2920-6-0x0000000010000000-0x0000000010018000-memory.dmp

Filesize
96KB

Download
memory/2920-12-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2920-15-0x0000000010000000-0x0000000010018000-memory.dmp

Filesize
96KB

Download
memory/2920-18-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2920-20-0x0000000010000000-0x0000000010018000-memory.dmp

Filesize
96KB

Download
memory/4788-9-0x0000000010000000-0x0000000010016000-memory.dmp

Filesize
88KB

Download
memory/4788-11-0x0000000010000000-0x0000000010016000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads