ee48eb5538418a68b50db8cde4483110f156ed5f70ad714cc16bdd8c822e89eb

Analysis

max time kernel
118s
max time network
123s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
04-07-2024 17:58

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

25b4f53e2b441d18df560cebebc06be7_JaffaCakes118.dll
Size

94KB
MD5

25b4f53e2b441d18df560cebebc06be7
SHA1

49a04e5975d4058b66305ccc372811eea8d356a1
SHA256

ee48eb5538418a68b50db8cde4483110f156ed5f70ad714cc16bdd8c822e89eb
SHA512

5bba3c38766fd63e644d2d0bd2ff489247df8e9482583730620241d56afccdd189a8ca98066d922e3ce5ee98ea6317bcd5d72a804eeb9209c5c5cc95364b0027
SSDEEP

1536:mGky8V4yKGeRbxMnciZ+MoKYbEjMWZUrmWVRrdTfm9ZcjXeDJ7TBGoGC6oib9E:mLdVeROnci3obBaWXrd7mwbeD1/1zibW

Score

8^/10

persistence upx

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Drivers\beep.sys	regsvr32.exe

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Autghorhization\Parameters\ServiceDll = "C:\\Windows\\system32\\TIrTVVaqoPUrtE.dll"	regsvr32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2252-0-0x0000000010000000-0x0000000010040000-memory.dmp	upx
behavioral1/memory/2760-6-0x0000000010000000-0x0000000010040000-memory.dmp	upx
behavioral1/memory/2760-7-0x0000000010000000-0x0000000010040000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\TIrTVVaqoPUrtE.dll	regsvr32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2796	2760	WerFault.exe	29

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2252	regsvr32.exe

Suspicious behavior: LoadsDriver 2 IoCs

pid	Process
476	Process not Found
476	Process not Found

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2252	regsvr32.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	2252	regsvr32.exe
Token: SeLoadDriverPrivilege	2252	regsvr32.exe
Token: SeDebugPrivilege	2252	regsvr32.exe
Token: SeLoadDriverPrivilege	2252	regsvr32.exe
Token: SeShutdownPrivilege	2252	regsvr32.exe
Token: SeDebugPrivilege	2760	svchost.exe
Token: SeLoadDriverPrivilege	2760	svchost.exe
Token: SeDebugPrivilege	2760	svchost.exe
Token: SeLoadDriverPrivilege	2760	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2424 wrote to memory of 2252	2424	regsvr32.exe	28
PID 2424 wrote to memory of 2252	2424	regsvr32.exe	28
PID 2424 wrote to memory of 2252	2424	regsvr32.exe	28
PID 2424 wrote to memory of 2252	2424	regsvr32.exe	28
PID 2424 wrote to memory of 2252	2424	regsvr32.exe	28
PID 2424 wrote to memory of 2252	2424	regsvr32.exe	28
PID 2424 wrote to memory of 2252	2424	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\25b4f53e2b441d18df560cebebc06be7_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2424
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\25b4f53e2b441d18df560cebebc06be7_JaffaCakes118.dll
  2⤵
  - Drops file in Drivers directory
  - Server Software Component: Terminal Services DLL
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  PID:2252

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k Autghorhization
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2760
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2760 -s 292
  2⤵
  - Program crash
  PID:2796

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

T1505

Terminal Services DLL

T1505.005

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\drivers\beep.sys

Filesize
2KB

MD5
f78ebe1c201e8464f31502539621391e

SHA1
57ca514fa6456bb618f82c152095e09231f3043d

SHA256
509aaae09ef45aff839a6a5533f725bb37e2fe1ced9aae86ddbafff4c7be7908

SHA512
6434fabba1b226108a8316e708e4d66a358777368c35da6212859611e8bc792adacd242cbfea843eb9d190f6b644155c6d9d85e7a3a91575fb5c7e2dff803ad8

Download Submit
memory/2252-0-0x0000000010000000-0x0000000010040000-memory.dmp

Filesize
256KB

Download
memory/2760-6-0x0000000010000000-0x0000000010040000-memory.dmp

Filesize
256KB

Download
memory/2760-7-0x0000000010000000-0x0000000010040000-memory.dmp

Filesize
256KB

Download