6da303affe082c200862aacf3023c27ee332338ae80369483da1578e04df9383

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
22/08/2024, 23:58

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General

Target

b992c8d373288bb86a6729c23f7ee57d_JaffaCakes118.dll
Size

289KB
MD5

b992c8d373288bb86a6729c23f7ee57d
SHA1

5a9f79082603276c6708e6834a167dcf6b599474
SHA256

6da303affe082c200862aacf3023c27ee332338ae80369483da1578e04df9383
SHA512

e6cc1afbe0c4aa565824fd0a3ba773800989694162cedb4eb53e82112601ce04fed58771e82702ed519deff03c2531ae19922cdd80549f2d179d0db10335af9e
SSDEEP

6144:FOTPNIOyR/kfc5bmQbpMyyHYP6+ZtKYF0H08doLuLvO9Cx:FOTiDR/kE5bmQbpMyyHYP6+ZtKYa08dh

Score

6^/10

adware discovery persistence stealer

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\klbxrreyirsbc = "C:\\Windows\\System32\\regsvr32.exe /s \"C:\\Users\\Admin\\AppData\\Local\\Temp\\b992c8d373288bb86a6729c23f7ee57d_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\{B3EEB0B5-1F1B-AB2C-3C6E-81A8A29D4202}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{B3EEB0B5-1F1B-AB2C-3C6E-81A8A29D4202}\NoExplorer = "1"	regsvr32.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	ielowutil.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies Internet Explorer settings 1 TTPs 40 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1413463787"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000068fd66d6220e584abe447a4e1268eb510000000002000000000010660000000100002000000002d54b64ca8a9ac2136b9aefcb1c79a64ef75bf650faecd65b648b0fc58dd98b000000000e8000000002000020000000198112b78e27f3fa9472247fc66d94198ecfb8120e779f23c1bc93dc4d4161b2200000000f1e66a8592e7df490742db38ab65f497e49325886734531016e3707c8f28e174000000032975bdbc563243d430c797c6637778217fefa3ced7d04713605a8e9c98d6f44bda76130f63b875c9365ebac5ab0311edc6d94b69e2a6feec828c26def2a17ff	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "431136113"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31126767"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31126767"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1413463787"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000068fd66d6220e584abe447a4e1268eb51000000000200000000001066000000010000200000007a79d37294bc07e37398ffa47ebecf7501f34178800edcb3b117a1dc227fa0af000000000e8000000002000020000000526bc674e451908b6ae452e78309514e82471aeff16dd5c555e4e21b27f7a3e8200000004a08330c01fd1fe4c413cbea0ab306c0b0bf6e7794a85d10669483eab8946b9e4000000099a4d8f52a92773b58eec8064bacd15846e72e804a576008fdaa914f81fe3a884e35be577f3abb7da955d33654a71c28026c0efdc037a81374a03808a51d945c	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = c06a6f54eff4da01	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\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
Set value (int)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31126767"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1413620213"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = d0cd6554eff4da01	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31126767"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{7F498A4F-60E2-11EF-B1C5-D20DFB866B4D} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1413620213"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B3EEB0B5-1F1B-AB2C-3C6E-81A8A29D4202}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B3EEB0B5-1F1B-AB2C-3C6E-81A8A29D4202}\ = "offersfortoday browser enhancer"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B3EEB0B5-1F1B-AB2C-3C6E-81A8A29D4202}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B3EEB0B5-1F1B-AB2C-3C6E-81A8A29D4202}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B3EEB0B5-1F1B-AB2C-3C6E-81A8A29D4202}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b992c8d373288bb86a6729c23f7ee57d_JaffaCakes118.dll"	regsvr32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1052	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1052	iexplore.exe
1052	iexplore.exe
3944	IEXPLORE.EXE
3944	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1068 wrote to memory of 528	1068	regsvr32.exe	84
PID 1068 wrote to memory of 528	1068	regsvr32.exe	84
PID 1068 wrote to memory of 528	1068	regsvr32.exe	84
PID 1052 wrote to memory of 3944	1052	iexplore.exe	87
PID 1052 wrote to memory of 3944	1052	iexplore.exe	87
PID 1052 wrote to memory of 3944	1052	iexplore.exe	87

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b992c8d373288bb86a6729c23f7ee57d_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1068
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\b992c8d373288bb86a6729c23f7ee57d_JaffaCakes118.dll
  2⤵
  - Adds Run key to start application
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:528

C:\Program Files (x86)\Internet Explorer\ielowutil.exe
"C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding
1⤵
- System Location Discovery: System Language Discovery
PID:1668

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:1052
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1052 CREDAT:17410 /prefetch:2
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:3944

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver55A.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

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C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\LNHEOAK4\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads