741bc7288c5a66be6d6ffd9f2e66317099326b346073b8287735d2fac6aba85c

Analysis

max time kernel
141s
max time network
127s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25/09/2024, 01:15

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

f4da6d25bc08697db50c08044afe3721_JaffaCakes118.dll
Size

168KB
MD5

f4da6d25bc08697db50c08044afe3721
SHA1

7b33aee93b2075247716e36569f245409245dab9
SHA256

741bc7288c5a66be6d6ffd9f2e66317099326b346073b8287735d2fac6aba85c
SHA512

4961efe55d686be6f6741d125701e7612d0c4eebe9a036083d0b5dc9fc242ab9ca71fca3cb73e27bbcea6056a422e3caecac7ed77b0a8c929c3cb527697ab828
SSDEEP

3072:pXTwrjsXj6WsUflJ/pZWcYv3k1z+wIzN9siNPKP119D43LcrO/L:RTUoXSUfJZWL+znIzNGWiL9iLWO

Score

6^/10

adware discovery persistence stealer upx

Malware Config

Signatures

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\rufwygbekgzvcsptn = "C:\\Windows\\System32\\regsvr32.exe /s \"C:\\Users\\Admin\\AppData\\Local\\Temp\\f4da6d25bc08697db50c08044afe3721_JaffaCakes118.dll\""	regsvr32.exe

Installs/modifies Browser Helper Object 2 TTPs 2 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\{C52D8BE7-D1AC-4954-9244-DC7158C36DE1}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{C52D8BE7-D1AC-4954-9244-DC7158C36DE1}\NoExplorer = "1"	regsvr32.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1372-0-0x0000000039AA0000-0x0000000039B1D000-memory.dmp	upx
behavioral1/memory/1372-3-0x0000000039AA0000-0x0000000039B1D000-memory.dmp	upx
behavioral1/memory/1372-4-0x0000000039AA0000-0x0000000039B1D000-memory.dmp	upx
behavioral1/memory/1372-438-0x0000000039AA0000-0x0000000039B1D000-memory.dmp	upx
behavioral1/memory/1372-439-0x0000000039AA0000-0x0000000039B1D000-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	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 27 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{A610FB61-7ADB-11EF-B788-5A85C185DB3E} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "433388795"	iexplore.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C52D8BE7-D1AC-4954-9244-DC7158C36DE1}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C52D8BE7-D1AC-4954-9244-DC7158C36DE1}\ = "revenuebuster browser enhancer"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C52D8BE7-D1AC-4954-9244-DC7158C36DE1}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C52D8BE7-D1AC-4954-9244-DC7158C36DE1}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C52D8BE7-D1AC-4954-9244-DC7158C36DE1}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f4da6d25bc08697db50c08044afe3721_JaffaCakes118.dll"	regsvr32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2960	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2960	iexplore.exe
2960	iexplore.exe
2716	IEXPLORE.EXE
2716	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 1372	2336	regsvr32.exe	31
PID 2336 wrote to memory of 1372	2336	regsvr32.exe	31
PID 2336 wrote to memory of 1372	2336	regsvr32.exe	31
PID 2336 wrote to memory of 1372	2336	regsvr32.exe	31
PID 2336 wrote to memory of 1372	2336	regsvr32.exe	31
PID 2336 wrote to memory of 1372	2336	regsvr32.exe	31
PID 2336 wrote to memory of 1372	2336	regsvr32.exe	31
PID 2960 wrote to memory of 2716	2960	iexplore.exe	33
PID 2960 wrote to memory of 2716	2960	iexplore.exe	33
PID 2960 wrote to memory of 2716	2960	iexplore.exe	33
PID 2960 wrote to memory of 2716	2960	iexplore.exe	33

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f4da6d25bc08697db50c08044afe3721_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\f4da6d25bc08697db50c08044afe3721_JaffaCakes118.dll
  2⤵
  - Adds Run key to start application
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:1372

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2960
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2960 CREDAT:275457 /prefetch:2
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:2716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Browser Extensions

T1176

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
782ab608930455d9ccbb50db5fabf546

SHA1
396f8d392d859119f7f6f247af14b3517d325203

SHA256
215fc9d6a71a8d82129e7b39370b25cab24d469a10e9c4ae9dabee124ee0472f

SHA512
f6bd6a48fd9b99053176d8fca03a12faabf5e702490852d331a3ca6e5f502d313f589f2497c616bd8e4af5c61ad911fed7ddfcb510a1c5459385fad7a726abfb

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
291ba12c02d6addef9699e641d1a6092

SHA1
7b032a7d77fe8a9193391b4d3a8a13cf610eda8c

SHA256
9f5f46f23baeceb326883a85b421c043fbd8d2936f67e3ef355d0c16d8c43b98

SHA512
d56b9739a8067de9b877752d4ac6af5616e57c5b2a70602f079a43569b57dd1d0f9e06b0f9209ffd5d5e89f269e44743f1b91d401ba5d3316218e0c5c77908b0

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
f63eb905b154fff26ad778c9274e840e

SHA1
92446f95472ff9933ff0f48272dc63d619893db0

SHA256
781ca558c75d04dfddaab37e60ab4318761672e2db542b4bb5831d3340707254

SHA512
90fdd01411da07a827808982b5ba619b4ada4f3655f954d8b0f0195e8ddd377bc8461fc7caf18e869f1ebbe983e1da92c511421d728a7cd75cbe3ec6324598cd

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
36dfa797cf7e63a3f505389d4c2234a7

SHA1
2d9f8961a1746f177964825a489363e46f05f215

SHA256
8aeebdfd89acf21a4842715ba40a0bad3af4b22e3110c70463db0f9f98e9a4a2

SHA512
6617936f15c5ca808e6cb6e90fbaddf75a94f952bc1cb58bb0d89ea39523fc6be5efc09c56fa73db95f2adec959b6d0549684daab2641f9ff6af1c9775387863

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
31c702f191e6eb311e3f99843a8919a7

SHA1
f58a940923c191e1791b915aea659fb885791fbc

SHA256
dfbc85686aa3890f9831683d0047df46e202c806156a47b06aad532f8196fbde

SHA512
a57587645eff1cae9f526ca9ca072afabfd9b4ebad068b63f5e8d77c41d02594517dbd91a65005ef7a733d9a097f1b16f425b322387053820684467f1464bd3b

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
1282c5508c2cd40d66d39fd80b302649

SHA1
6641365ba9e07f36bb19eabb00da4f619e86682f

SHA256
92d00a04c49ddd3dc4faa6d0f4a59d9291379da695687bb4f1c8aec4baf0e1f3

SHA512
ece5aa17e4aa6a4c55c302f73768b0f7fc66d95e303ba3585d68e6d9c02fc2b6462f81a18e06c52a68628a5b8d54edcef1124692a731818ff8abaccafc2ca7a6

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
1840143b68426535b63a5a6f3a3220f7

SHA1
6caa5bc4e175fedd070a6aeb755421c548528e5c

SHA256
84c93a611bb4f0403e53afcd5927df7da789a0b4d71a33174d2af1ad438d6c8b

SHA512
d55854285f8ff469b1c328fa6d0b726808b2bbce69ca247e7b82635042c61a987791985105a4c27bdef6ec70bd5186ec24ec7c9de0d5985a7c085ca52990d3d7

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
9c130d85968a00636f315e0d19169b62

SHA1
3d12a5df7baab5e4702c9891c0a55c107412ea4e

SHA256
1352123ae76a31146be0ef77b5127995ea81d40581704aa40f7479296f51d8fa

SHA512
ed0b7bfaa94d1156453b628031547b6ea99f2c15623c48128359a14071824606bde95e5b4d45ee25590f0d63e6804b5b3d3b6a52cca458dc7c6946b4333897db

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabDF0B.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarDF5C.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/1372-4-0x0000000039AA0000-0x0000000039B1D000-memory.dmp

Filesize
500KB

Download
memory/1372-3-0x0000000039AA0000-0x0000000039B1D000-memory.dmp

Filesize
500KB

Download
memory/1372-1-0x0000000000380000-0x0000000000382000-memory.dmp

Filesize
8KB

Download
memory/1372-0-0x0000000039AA0000-0x0000000039B1D000-memory.dmp

Filesize
500KB

Download
memory/1372-438-0x0000000039AA0000-0x0000000039B1D000-memory.dmp

Filesize
500KB

Download
memory/1372-439-0x0000000039AA0000-0x0000000039B1D000-memory.dmp

Filesize
500KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads