e7c6cff06dd52b4fd9b1a672905427fb2a74fe8fac078646be1e977a95d040e1

Analysis

max time kernel
150s
max time network
139s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
04-07-2024 08:34

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General

Target

254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
Size

321KB
MD5

254be39e7174886cf8be14336234a8ed
SHA1

83d5d97c3647fa6ca69fecac476cbdbf3547300c
SHA256

e7c6cff06dd52b4fd9b1a672905427fb2a74fe8fac078646be1e977a95d040e1
SHA512

571e723e5e8d574c0bae7b1a9d9759fee64a0eb9c715f165590ddee3903934f5a199441343741c0fe9a1b8d050fe29bfdd40bb60518991dfb8fc50114eb4cf94
SSDEEP

6144:/hLOIxHWhqlDI25+olxovhE08ibKX/fVj1mUadK09D1:/hHxBD/JlxkdcVj1AZD1

Score

8^/10

evasion persistence upx

Malware Config

Signatures

Disables Task Manager via registry modification
evasion

Executes dropped EXE 1 IoCs

pid	Process
1856	tFKcFefgSUgenC.exe

Loads dropped DLL 2 IoCs

pid	Process
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2244-2-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/2244-25-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/1856-26-0x0000000000400000-0x0000000000465000-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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\tFKcFefgSUgenC.exe = "C:\\ProgramData\\tFKcFefgSUgenC.exe"	254be39e7174886cf8be14336234a8ed_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 value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	tFKcFefgSUgenC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	tFKcFefgSUgenC.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000\Software\Microsoft\Internet Explorer\Download	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000\Software\Microsoft\Internet Explorer\Download\CheckExeSignatures = "no"	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 1856	2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe	31
PID 2244 wrote to memory of 1856	2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe	31
PID 2244 wrote to memory of 1856	2244	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe	31
PID 2244 wrote to memory of 1856	2244	254be39e7174886cf8be14336234a8ed_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	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr = "1"	254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\254be39e7174886cf8be14336234a8ed_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\254be39e7174886cf8be14336234a8ed_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 use of WriteProcessMemory
- System policy modification
PID:2244
- C:\ProgramData\tFKcFefgSUgenC.exe
  C:\ProgramData\tFKcFefgSUgenC.exe
  2⤵
  - Executes dropped EXE
  - Maps connected drives based on registry
  PID:1856

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\tFKcFefgSUgenC.exe

Filesize
321KB

MD5
254be39e7174886cf8be14336234a8ed

SHA1
83d5d97c3647fa6ca69fecac476cbdbf3547300c

SHA256
e7c6cff06dd52b4fd9b1a672905427fb2a74fe8fac078646be1e977a95d040e1

SHA512
571e723e5e8d574c0bae7b1a9d9759fee64a0eb9c715f165590ddee3903934f5a199441343741c0fe9a1b8d050fe29bfdd40bb60518991dfb8fc50114eb4cf94

Download Submit
memory/1856-24-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/1856-26-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2244-0-0x0000000001CA0000-0x0000000001CE9000-memory.dmp

Filesize
292KB

Download
memory/2244-1-0x000000000043B000-0x0000000000464000-memory.dmp

Filesize
164KB

Download
memory/2244-2-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2244-5-0x0000000001CA0000-0x0000000001CE9000-memory.dmp

Filesize
292KB

Download
memory/2244-25-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download