dc43c59e0b8abb1af31ad08e334d1cdfe8a57e2fe1e73779786cb76616afe4b0

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
04/10/2024, 13:12

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General

Target

137d0d610541ee95dda97be7861ad5fc_JaffaCakes118.exe
Size

134KB
MD5

137d0d610541ee95dda97be7861ad5fc
SHA1

42e7c5b0c07e1acc6feb983f68b13448dd1a7c44
SHA256

dc43c59e0b8abb1af31ad08e334d1cdfe8a57e2fe1e73779786cb76616afe4b0
SHA512

3bd2720982207872dfe57787caac2b3f1dac5d4c9088e89d031f49831b03927cae98d888731968b9bd660c3ca9c90f090b6beccd4bf7d37f883eb4281a08950e
SSDEEP

3072:lL1SE8b1R1Fw6qPrZZGa68rBSf77Ul09z7AeF:Z1SE8l6LHGa6gk77UloMeF

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2108	Obezya.exe

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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\KCSCPW1HKH = "C:\\Windows\\Obezya.exe"	Obezya.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2172-0-0x0000000000400000-0x000000000043A000-memory.dmp	upx
behavioral1/files/0x0007000000016d3a-9.dat	upx
behavioral1/memory/2108-11-0x0000000000400000-0x000000000043A000-memory.dmp	upx

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\{62C40AA6-4406-467a-A5A5-DFDF1B559B7A}.job	137d0d610541ee95dda97be7861ad5fc_JaffaCakes118.exe
File opened for modification	C:\Windows\Tasks\{62C40AA6-4406-467a-A5A5-DFDF1B559B7A}.job	137d0d610541ee95dda97be7861ad5fc_JaffaCakes118.exe
File created	C:\Windows\Obezya.exe	137d0d610541ee95dda97be7861ad5fc_JaffaCakes118.exe
File opened for modification	C:\Windows\Obezya.exe	137d0d610541ee95dda97be7861ad5fc_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	137d0d610541ee95dda97be7861ad5fc_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Obezya.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\International	Obezya.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main	Obezya.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe
2108	Obezya.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 2108	2172	137d0d610541ee95dda97be7861ad5fc_JaffaCakes118.exe	30
PID 2172 wrote to memory of 2108	2172	137d0d610541ee95dda97be7861ad5fc_JaffaCakes118.exe	30
PID 2172 wrote to memory of 2108	2172	137d0d610541ee95dda97be7861ad5fc_JaffaCakes118.exe	30
PID 2172 wrote to memory of 2108	2172	137d0d610541ee95dda97be7861ad5fc_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\137d0d610541ee95dda97be7861ad5fc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\137d0d610541ee95dda97be7861ad5fc_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Windows\Obezya.exe
  C:\Windows\Obezya.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  PID:2108

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Obezya.exe

Filesize
134KB

MD5
137d0d610541ee95dda97be7861ad5fc

SHA1
42e7c5b0c07e1acc6feb983f68b13448dd1a7c44

SHA256
dc43c59e0b8abb1af31ad08e334d1cdfe8a57e2fe1e73779786cb76616afe4b0

SHA512
3bd2720982207872dfe57787caac2b3f1dac5d4c9088e89d031f49831b03927cae98d888731968b9bd660c3ca9c90f090b6beccd4bf7d37f883eb4281a08950e

Download Submit
C:\Windows\Tasks\{62C40AA6-4406-467a-A5A5-DFDF1B559B7A}.job

Filesize
372B

MD5
3b9ab7dfa66c454d090721fa890789eb

SHA1
1f87596c980ad078fb9df4a12efceb100198b222

SHA256
1c444073174c009a9a042464adab1573723e45e761ac0961b79ce498b70841cd

SHA512
4df78051d1a526d4408d2e45a0cb6cb7f1f5d0cff827291c30ae25c864317de44cc3d80d43fe482d7c15b131b849f6fed16abb184e47ad914a624b0c6b55ee75

Download Submit
memory/2108-20133-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2108-23436-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2108-51690-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2108-51686-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2108-11-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2108-51684-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2108-14-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2108-13-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2108-51683-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2108-26617-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2108-51682-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2108-51681-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2108-29748-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2108-29772-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2172-13818-0x0000000001F10000-0x0000000001F4A000-memory.dmp

Filesize
232KB

Download
memory/2172-42845-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2172-0-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2172-3-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2172-1-0x0000000000401000-0x0000000000402000-memory.dmp

Filesize
4KB

Download
memory/2172-12-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2172-2-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2172-10-0x0000000001F10000-0x0000000001F4A000-memory.dmp

Filesize
232KB

Download