da0500a6ab1e9d4e3595ee0ea3802466ba947fb198f51c3049eac4a2898804bf

Analysis

max time kernel
150s
max time network
123s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
22/07/2024, 21:36

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General

Target

64e53ab5b711e3bf7f2ca518bab8bb47_JaffaCakes118.exe
Size

436KB
MD5

64e53ab5b711e3bf7f2ca518bab8bb47
SHA1

991364bb8faa7a8cbae86bccabb709059c561e5c
SHA256

da0500a6ab1e9d4e3595ee0ea3802466ba947fb198f51c3049eac4a2898804bf
SHA512

1eafbd2db14a762be03a7b23fcae86bf3f90bf8a3dd78d85119cd692afecd8be76ad1e6013ee316fb84f92c81ae2704a6d15432ad13a67c60c6b376d5ee7e56d
SSDEEP

12288:9+UGYCh/RlUOjfvTFLCQnxZKT9An7s99ggMXwsAyW:9+UGYCh517vpCQnNAD5s

Score

8^/10

evasion persistence upx

Malware Config

Signatures

Disables Task Manager via registry modification
evasion

Executes dropped EXE 1 IoCs

pid	Process
2656	yxJTUiXVvg.exe

Loads dropped DLL 2 IoCs

pid	Process
1876	64e53ab5b711e3bf7f2ca518bab8bb47_JaffaCakes118.exe
1876	64e53ab5b711e3bf7f2ca518bab8bb47_JaffaCakes118.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1876-2-0x0000000000600000-0x0000000000675000-memory.dmp	upx
behavioral1/memory/1876-3-0x0000000000600000-0x0000000000675000-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\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\yxJTUiXVvg = "C:\\ProgramData\\yxJTUiXVvg.exe"	64e53ab5b711e3bf7f2ca518bab8bb47_JaffaCakes118.exe

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	64e53ab5b711e3bf7f2ca518bab8bb47_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	64e53ab5b711e3bf7f2ca518bab8bb47_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	yxJTUiXVvg.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	yxJTUiXVvg.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Internet Explorer\Download	64e53ab5b711e3bf7f2ca518bab8bb47_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Internet Explorer\Download\CheckExeSignatures = "no"	64e53ab5b711e3bf7f2ca518bab8bb47_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1876	64e53ab5b711e3bf7f2ca518bab8bb47_JaffaCakes118.exe
1876	64e53ab5b711e3bf7f2ca518bab8bb47_JaffaCakes118.exe
1876	64e53ab5b711e3bf7f2ca518bab8bb47_JaffaCakes118.exe
1876	64e53ab5b711e3bf7f2ca518bab8bb47_JaffaCakes118.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe
2656	yxJTUiXVvg.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1876	64e53ab5b711e3bf7f2ca518bab8bb47_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1876 wrote to memory of 2656	1876	64e53ab5b711e3bf7f2ca518bab8bb47_JaffaCakes118.exe	31
PID 1876 wrote to memory of 2656	1876	64e53ab5b711e3bf7f2ca518bab8bb47_JaffaCakes118.exe	31
PID 1876 wrote to memory of 2656	1876	64e53ab5b711e3bf7f2ca518bab8bb47_JaffaCakes118.exe	31
PID 1876 wrote to memory of 2656	1876	64e53ab5b711e3bf7f2ca518bab8bb47_JaffaCakes118.exe	31

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	64e53ab5b711e3bf7f2ca518bab8bb47_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr = "1"	64e53ab5b711e3bf7f2ca518bab8bb47_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\64e53ab5b711e3bf7f2ca518bab8bb47_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\64e53ab5b711e3bf7f2ca518bab8bb47_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1876
- C:\ProgramData\yxJTUiXVvg.exe
  "C:\ProgramData\yxJTUiXVvg.exe"
  2⤵
  - Executes dropped EXE
  - Maps connected drives based on registry
  - Suspicious behavior: EnumeratesProcesses
  PID:2656

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\ProgramData\yxJTUiXVvg.exe

Filesize
436KB

MD5
64e53ab5b711e3bf7f2ca518bab8bb47

SHA1
991364bb8faa7a8cbae86bccabb709059c561e5c

SHA256
da0500a6ab1e9d4e3595ee0ea3802466ba947fb198f51c3049eac4a2898804bf

SHA512
1eafbd2db14a762be03a7b23fcae86bf3f90bf8a3dd78d85119cd692afecd8be76ad1e6013ee316fb84f92c81ae2704a6d15432ad13a67c60c6b376d5ee7e56d

Download Submit
memory/1876-0-0x00000000002C0000-0x0000000000317000-memory.dmp

Filesize
348KB

Download
memory/1876-1-0x000000000066A000-0x000000000066B000-memory.dmp

Filesize
4KB

Download
memory/1876-2-0x0000000000600000-0x0000000000675000-memory.dmp

Filesize
468KB

Download
memory/1876-3-0x0000000000600000-0x0000000000675000-memory.dmp

Filesize
468KB

Download
memory/1876-15-0x00000000002C0000-0x0000000000317000-memory.dmp

Filesize
348KB

Download
memory/2656-14-0x0000000000600000-0x0000000000675000-memory.dmp

Filesize
468KB

Download