Malware Analysis Report

2025-08-05 10:56

Sample ID 241005-ele25aydnd
Target 161337d3ffd09408a54f615ee3c1116f_JaffaCakes118
SHA256 dffdeda62abe601e86fdc4a95d710daa9ce5bdd2b8ebdd9f62fd664f2a3ef032
Tags
discovery ramnit banker spyware stealer trojan upx worm
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

dffdeda62abe601e86fdc4a95d710daa9ce5bdd2b8ebdd9f62fd664f2a3ef032

Threat Level: Known bad

The file 161337d3ffd09408a54f615ee3c1116f_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

discovery ramnit banker spyware stealer trojan upx worm

Ramnit

Loads dropped DLL

Executes dropped EXE

Drops file in System32 directory

UPX packed file

Program crash

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Modifies Internet Explorer settings

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-05 04:01

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-05 04:01

Reported

2024-10-05 04:04

Platform

win7-20240903-en

Max time kernel

122s

Max time network

123s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\161337d3ffd09408a54f615ee3c1116f_JaffaCakes118.dll,#1

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32mgr.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32mgr.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2432 wrote to memory of 2132 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2432 wrote to memory of 2132 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2432 wrote to memory of 2132 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2432 wrote to memory of 2132 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2432 wrote to memory of 2132 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2432 wrote to memory of 2132 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2432 wrote to memory of 2132 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2132 wrote to memory of 2356 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 2132 wrote to memory of 2356 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 2132 wrote to memory of 2356 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 2132 wrote to memory of 2356 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32mgr.exe
PID 2356 wrote to memory of 2200 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\WerFault.exe
PID 2356 wrote to memory of 2200 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\WerFault.exe
PID 2356 wrote to memory of 2200 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\WerFault.exe
PID 2356 wrote to memory of 2200 N/A C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\WerFault.exe
PID 2132 wrote to memory of 2232 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\WerFault.exe
PID 2132 wrote to memory of 2232 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\WerFault.exe
PID 2132 wrote to memory of 2232 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\WerFault.exe
PID 2132 wrote to memory of 2232 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\161337d3ffd09408a54f615ee3c1116f_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\161337d3ffd09408a54f615ee3c1116f_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32mgr.exe

C:\Windows\SysWOW64\rundll32mgr.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2132 -s 224

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2356 -s 92

Network

N/A

Files

memory/2132-1-0x000000006D240000-0x000000006D25A000-memory.dmp

\Windows\SysWOW64\rundll32mgr.exe

MD5 fba9053e3a7f286a68a072f5d1b57b42
SHA1 19c4800e8de1e83ff7bf0b96a96563e8430ce9f3
SHA256 5675295a26c3839803fd25fb667f2be09c2b6bf3412202a09c3dfc9a46eb4ca4
SHA512 ee53bbd9531801df780279da49bd34863513db67fbacbd6b0abb844d02cb76f5e86ed39ad28585b27aa42d3659a8fc9f3d1459f92f81eca970e69bac7c403c64

memory/2132-8-0x000000006D240000-0x000000006D25A000-memory.dmp

memory/2132-17-0x000000006D240000-0x000000006D25A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-05 04:01

Reported

2024-10-05 04:04

Platform

win10v2004-20240802-en

Max time kernel

95s

Max time network

142s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\161337d3ffd09408a54f615ee3c1116f_JaffaCakes118.dll,#1

Signatures

Ramnit

trojan spyware stealer worm banker ramnit

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32mgr.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\rundll32mgr.exe C:\Windows\SysWOW64\rundll32.exe N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32mgr.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1417742933" C:\Program Files\Internet Explorer\iexplore.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames C:\Program Files\Internet Explorer\iexplore.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ C:\Program Files\Internet Explorer\iexplore.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" C:\Program Files\Internet Explorer\iexplore.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" C:\Program Files\Internet Explorer\iexplore.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\GPU C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\VersionManager C:\Program Files\Internet Explorer\iexplore.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" C:\Program Files\Internet Explorer\iexplore.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ C:\Program Files\Internet Explorer\iexplore.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" C:\Program Files\Internet Explorer\iexplore.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive C:\Program Files\Internet Explorer\iexplore.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" C:\Program Files\Internet Explorer\iexplore.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\VersionManager C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31135451" C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\DomainSuggestion C:\Program Files\Internet Explorer\iexplore.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Main C:\Program Files\Internet Explorer\iexplore.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{800B925D-82CE-11EF-84CD-62872261FF50} = "0" C:\Program Files\Internet Explorer\iexplore.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Main C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE N/A
Set value (data) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 C:\Program Files\Internet Explorer\iexplore.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31135451" C:\Program Files\Internet Explorer\iexplore.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31135451" C:\Program Files\Internet Explorer\iexplore.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\"" C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" C:\Program Files\Internet Explorer\iexplore.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion C:\Program Files\Internet Explorer\iexplore.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery C:\Program Files\Internet Explorer\iexplore.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1417742933" C:\Program Files\Internet Explorer\iexplore.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1421024276" C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch C:\Program Files\Internet Explorer\iexplore.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" C:\Program Files\Internet Explorer\iexplore.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "434865864" C:\Program Files\Internet Explorer\iexplore.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\rundll32mgr.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Program Files\Internet Explorer\iexplore.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32mgr.exe N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\161337d3ffd09408a54f615ee3c1116f_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\161337d3ffd09408a54f615ee3c1116f_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32mgr.exe

C:\Windows\SysWOW64\rundll32mgr.exe

C:\Program Files\Internet Explorer\iexplore.exe

"C:\Program Files\Internet Explorer\iexplore.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1712 -ip 1712

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE

"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3328 CREDAT:17410 /prefetch:2

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1712 -s 608

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 api.bing.com udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 161.19.199.152.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 75.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 204.79.197.200:443 ieonline.microsoft.com tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

memory/1712-0-0x000000006D240000-0x000000006D25A000-memory.dmp

C:\Windows\SysWOW64\rundll32mgr.exe

MD5 fba9053e3a7f286a68a072f5d1b57b42
SHA1 19c4800e8de1e83ff7bf0b96a96563e8430ce9f3
SHA256 5675295a26c3839803fd25fb667f2be09c2b6bf3412202a09c3dfc9a46eb4ca4
SHA512 ee53bbd9531801df780279da49bd34863513db67fbacbd6b0abb844d02cb76f5e86ed39ad28585b27aa42d3659a8fc9f3d1459f92f81eca970e69bac7c403c64

memory/1264-8-0x0000000000400000-0x000000000041A000-memory.dmp

memory/1264-13-0x0000000000400000-0x000000000041A000-memory.dmp

memory/1264-15-0x00000000006F0000-0x00000000006F1000-memory.dmp

memory/1264-16-0x00000000774A2000-0x00000000774A3000-memory.dmp

memory/1264-12-0x0000000000400000-0x000000000041A000-memory.dmp

memory/1264-10-0x0000000000690000-0x0000000000691000-memory.dmp

memory/1264-11-0x0000000000400000-0x000000000041A000-memory.dmp

memory/1264-9-0x0000000000400000-0x000000000041A000-memory.dmp

memory/1264-17-0x00000000774A2000-0x00000000774A3000-memory.dmp

memory/1264-6-0x0000000000400000-0x000000000041A000-memory.dmp

memory/1264-5-0x0000000000400000-0x000000000041A000-memory.dmp

memory/1264-7-0x0000000000400000-0x000000000041A000-memory.dmp

memory/1712-19-0x000000006D240000-0x000000006D25A000-memory.dmp

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

MD5 db7c83e09ebc4317f2bf2df7f66b8513
SHA1 29d58ef43f72ce7cf79ce6109d038a6c9b4873f0
SHA256 1ae4c8aa37bf433bc5b3b45e017c95bf843c7dbbe348c78c7ab6f3cad0fda4b8
SHA512 6eb46ae0c3e091ba13b1c0e3fb6de568882940df7968d0e1297568ea5356a4691f2a869c7c9ac9e9642bcc2e4e1388d00b15c663276143e8cb5015ab89c27867

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

MD5 8a39ed07c67fd87d3c502fd5913148b7
SHA1 ab7eb02ccc5e984b596fd788804eaa9586996207
SHA256 6e11d3a4e0cf4ee881925c1cf5ce18476d6bb8e07872142887200bed5ab31cb5
SHA512 a6e02588ead78f0c7ea47b8646e5a3dc7fa0713ebd4b8e8727ce06cf79d3454d516889f073acd05bf9deee589620e79363a49a3ef41032b68497b6fa364186b8

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\JACP9GNT\suggestions[1].en-US

MD5 5a34cb996293fde2cb7a4ac89587393a
SHA1 3c96c993500690d1a77873cd62bc639b3a10653f
SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512 e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee