0956bc121028e4e1883277680b745a1707b83e90485c392f3943c9259b51524c

Analysis

max time kernel
141s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
21/05/2024, 10:55

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General

Target

630c21a445c205505221ce85753305a9_JaffaCakes118.exe
Size

30KB
MD5

630c21a445c205505221ce85753305a9
SHA1

c5250b5f361025445791ba5d4d7a3e407eba2578
SHA256

0956bc121028e4e1883277680b745a1707b83e90485c392f3943c9259b51524c
SHA512

ecec55a8ccea0158a3b200d560cf22483336377e571faf6d6226dfa000f887df09108134a3509b6bb6e49b2565098620fd8e992ade5326c8d8991c60cd1d47be
SSDEEP

384:k3gCPh3YEPbyvnkYUROXpG6k4xHVNzvCvhECXeUJRX4NwWZxg5yJy53tWObWjBCg:ABtqmRwptVVUvvewUTJy5dxKZ

Score

7^/10

persistence upx

Malware Config

Signatures

Checks BIOS information in registry 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosdate	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1756	reader_s.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3616-3-0x0000000013100000-0x0000000013117000-memory.dmp	upx
behavioral2/memory/1756-9-0x0000000013100000-0x0000000013117000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\reader_s = "C:\\Users\\Admin\\reader_s.exe"	reader_s.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\reader_s = "C:\\Windows\\System32\\reader_s.exe"	reader_s.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\reader_s.exe	630c21a445c205505221ce85753305a9_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1756 set thread context of 2652	1756	reader_s.exe	84

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	svchost.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosDate	svchost.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3616 wrote to memory of 1756	3616	630c21a445c205505221ce85753305a9_JaffaCakes118.exe	83
PID 3616 wrote to memory of 1756	3616	630c21a445c205505221ce85753305a9_JaffaCakes118.exe	83
PID 3616 wrote to memory of 1756	3616	630c21a445c205505221ce85753305a9_JaffaCakes118.exe	83
PID 1756 wrote to memory of 2652	1756	reader_s.exe	84
PID 1756 wrote to memory of 2652	1756	reader_s.exe	84
PID 1756 wrote to memory of 2652	1756	reader_s.exe	84
PID 1756 wrote to memory of 2652	1756	reader_s.exe	84
PID 1756 wrote to memory of 2652	1756	reader_s.exe	84
PID 1756 wrote to memory of 2652	1756	reader_s.exe	84
PID 1756 wrote to memory of 2652	1756	reader_s.exe	84
PID 1756 wrote to memory of 2652	1756	reader_s.exe	84

C:\Users\Admin\AppData\Local\Temp\630c21a445c205505221ce85753305a9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\630c21a445c205505221ce85753305a9_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:3616
- C:\Windows\SysWOW64\reader_s.exe
  "C:\Windows\System32\reader_s.exe" /n
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1756
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\System32\svchost.exe
    3⤵
    - Checks BIOS information in registry
    - Checks processor information in registry
    - Enumerates system info in registry
    PID:2652

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

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Downloads

C:\Windows\SysWOW64\reader_s.exe

Filesize
30KB

MD5
630c21a445c205505221ce85753305a9

SHA1
c5250b5f361025445791ba5d4d7a3e407eba2578

SHA256
0956bc121028e4e1883277680b745a1707b83e90485c392f3943c9259b51524c

SHA512
ecec55a8ccea0158a3b200d560cf22483336377e571faf6d6226dfa000f887df09108134a3509b6bb6e49b2565098620fd8e992ade5326c8d8991c60cd1d47be

Download Submit
memory/1756-9-0x0000000013100000-0x0000000013117000-memory.dmp

Filesize
92KB

Download
memory/2652-10-0x0000000009500000-0x0000000009507000-memory.dmp

Filesize
28KB

Download
memory/2652-13-0x0000000009500000-0x0000000009507000-memory.dmp

Filesize
28KB

Download
memory/2652-12-0x0000000009500000-0x0000000009507000-memory.dmp

Filesize
28KB

Download
memory/2652-14-0x0000000009500000-0x0000000009507000-memory.dmp

Filesize
28KB

Download
memory/3616-3-0x0000000013100000-0x0000000013117000-memory.dmp

Filesize
92KB

Download
memory/3616-2-0x0000000013107000-0x000000001310B000-memory.dmp

Filesize
16KB

Download
memory/3616-1-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads