8b92d7d028eaca1c08fc5784ff16751176669ea147c3f2e9de7a594bf9151dd7

General

Target

a30896b4061d23a0099e7338eac8c245_JaffaCakes118.exe
Size

23KB
MD5

a30896b4061d23a0099e7338eac8c245
SHA1

49abcd5215c5e2fd6f211c6f13b1cadb8e6db1dd
SHA256

8b92d7d028eaca1c08fc5784ff16751176669ea147c3f2e9de7a594bf9151dd7
SHA512

5007ede43dd089c2019a2f54a3a8202d93f393a0915e2bcd60363bcd39970736a4c0ae966b4c777241c8c632c36aa523265624e87778a734fb8ae53a43e0146d
SSDEEP

384:DuaYxRioZSr1ZFVWIvWL9gKU4SewKCvNA+i10AAV50BXGduH82gdYV:StGQSrjFVWI+WRZ5NLidZGWbgd

Score

7^/10

discovery persistence upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4936-0-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral2/memory/4936-12-0x0000000000400000-0x0000000000411000-memory.dmp	upx

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\UserLogon = "C:\\Windows\\system32\\usrsvc.exe"	a30896b4061d23a0099e7338eac8c245_JaffaCakes118.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\usrsvc.exe	a30896b4061d23a0099e7338eac8c245_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\usrsvc.exe	a30896b4061d23a0099e7338eac8c245_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\usrexplore.exe	a30896b4061d23a0099e7338eac8c245_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	a30896b4061d23a0099e7338eac8c245_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 25 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000000000001000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{B2D1DB38-5CAA-11EF-9A03-F60A6DD2E828} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{AFC172F9-5CAA-11EF-9A03-F60A6DD2E828} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000000000001000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4936	a30896b4061d23a0099e7338eac8c245_JaffaCakes118.exe

Suspicious use of FindShellTrayWindow 16 IoCs

pid	Process
2288	iexplore.exe
2288	iexplore.exe
2288	iexplore.exe
2288	iexplore.exe
2288	iexplore.exe
2288	iexplore.exe
2288	iexplore.exe
2288	iexplore.exe
3076	iexplore.exe
3076	iexplore.exe
3076	iexplore.exe
3076	iexplore.exe
3076	iexplore.exe
3076	iexplore.exe
3076	iexplore.exe
3076	iexplore.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
2288	iexplore.exe
2288	iexplore.exe
2212	IEXPLORE.EXE
2212	IEXPLORE.EXE
3076	iexplore.exe
3076	iexplore.exe
4812	IEXPLORE.EXE
4812	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 2288	4936	a30896b4061d23a0099e7338eac8c245_JaffaCakes118.exe	84
PID 4936 wrote to memory of 2288	4936	a30896b4061d23a0099e7338eac8c245_JaffaCakes118.exe	84
PID 2288 wrote to memory of 2212	2288	iexplore.exe	85
PID 2288 wrote to memory of 2212	2288	iexplore.exe	85
PID 2288 wrote to memory of 2212	2288	iexplore.exe	85
PID 4936 wrote to memory of 3076	4936	a30896b4061d23a0099e7338eac8c245_JaffaCakes118.exe	91
PID 4936 wrote to memory of 3076	4936	a30896b4061d23a0099e7338eac8c245_JaffaCakes118.exe	91
PID 3076 wrote to memory of 4812	3076	iexplore.exe	92
PID 3076 wrote to memory of 4812	3076	iexplore.exe	92
PID 3076 wrote to memory of 4812	3076	iexplore.exe	92

C:\Users\Admin\AppData\Local\Temp\a30896b4061d23a0099e7338eac8c245_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a30896b4061d23a0099e7338eac8c245_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:4936
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" http://au-sales.net/sp/alert.php?alert
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2288
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2288 CREDAT:17410 /prefetch:2
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:2212
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" http://fkjrrr.com/alert.php?alert
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3076
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3076 CREDAT:17410 /prefetch:2
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:4812

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

1

T1547.001

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{AFC172F9-5CAA-11EF-9A03-F60A6DD2E828}.dat

Filesize
5KB

MD5
51740ecf49b965aee78c2e2f85f66435

SHA1
19f894df423c4e9696d63703dabc4a188e0f4202

SHA256
9d9f6936a2fe157761edb6cc8827291eefe1b71664955e94f0f4f5cdf8342896

SHA512
1de590e0e3f3c37f0204c794017e4f9ead0f8a743d819b48819155a4f51d453a8f33f6c6fe9ebabe77f46aed7c3438f106d3127b2042d0160fb7ec91b2aae836

Download Submit
memory/4936-0-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/4936-12-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads