ef0bfac8bd8acb943449d81d9505cabe0885094c4b387f1268e3c496006d78c7

Analysis

max time kernel
93s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
14/07/2024, 17:54

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General

Target

46e39a5f32136bef752b128de0af54d7_JaffaCakes118.exe
Size

76KB
MD5

46e39a5f32136bef752b128de0af54d7
SHA1

0e6fbf9f629e70feec9f149ddd48d4925c843e78
SHA256

ef0bfac8bd8acb943449d81d9505cabe0885094c4b387f1268e3c496006d78c7
SHA512

3c6809d1aec3ecbf7ee77bc8137b45812161869f057bc034395bd6d5173fd36874fd9c227207a4b3521c806e788b90f36d6a0ce055d83ab0d94f90a3e4d85583
SSDEEP

1536:t5IctgeInVw24Mu9kJxlJoCtghVlJOmcKuVTD1:t5Ictrcwiu9kJxlOBEx

Score

7^/10

persistence upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation	46e39a5f32136bef752b128de0af54d7_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
4464	winNzbfP.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000900000002339b-4.dat	upx
behavioral2/memory/4464-11-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral2/memory/4464-18-0x0000000000400000-0x0000000000418000-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-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winNzbfP = "C:\\Windows\\system32\\winNzbfP.exe"	46e39a5f32136bef752b128de0af54d7_JaffaCakes118.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\winNzbfP.exe	46e39a5f32136bef752b128de0af54d7_JaffaCakes118.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SoftWare	winNzbfP.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4464	winNzbfP.exe
4464	winNzbfP.exe
4464	winNzbfP.exe
4464	winNzbfP.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2028 wrote to memory of 4464	2028	46e39a5f32136bef752b128de0af54d7_JaffaCakes118.exe	86
PID 2028 wrote to memory of 4464	2028	46e39a5f32136bef752b128de0af54d7_JaffaCakes118.exe	86
PID 2028 wrote to memory of 4464	2028	46e39a5f32136bef752b128de0af54d7_JaffaCakes118.exe	86

C:\Users\Admin\AppData\Local\Temp\46e39a5f32136bef752b128de0af54d7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\46e39a5f32136bef752b128de0af54d7_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Windows\SysWOW64\winNzbfP.exe
  "C:\Windows\System32\winNzbfP.exe"
  2⤵
  - Executes dropped EXE
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:4464

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\winNzbfP.exe

Filesize
30KB

MD5
0aa29f812f9362a7aa0efcc6571a45c3

SHA1
7de2999d3527717376a75e5f2724610e401ff61f

SHA256
2cde921c6a4a79a0767054699b284fdc0c09921945995b8f27021bf43933fa9f

SHA512
9bcc759635c8034244180b6a916760e3dc9876aa308c8df50c693934f9966f26bb82af8bfa5476132706b8b776a5eaef701d67bc12d83a3cc9be70fe1d85ec89

Download Submit
memory/4464-11-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/4464-18-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download