8990bd5ee8f0b6dd86e39d332ccd59955d4eb1295141409ffada1826c01ef317

General

Target

a5f9be8097101861e6ec3e8c7253e6bf_JaffaCakes118.exe
Size

21KB
MD5

a5f9be8097101861e6ec3e8c7253e6bf
SHA1

7609c2d84d697ad69b90fbc1857df003b1a017ad
SHA256

8990bd5ee8f0b6dd86e39d332ccd59955d4eb1295141409ffada1826c01ef317
SHA512

d8a3147ace7dfa26c010230029c9ec0c13d924a4ceab8fffb7fab8f6cc28cefd257c15eab2434a9065f19f24440ae58f927fba76f2690a58c5f7dd39a53cf4ff
SSDEEP

384:mIiV728hUQ7Y2P/cVEccDdye7kjlWLe7grPiA8jyrMPhTjanbBoZLrfaNJawcudu:mRGuY2P0Vo6r7SiAwyrMRjb1inbcuyDs

Score

8^/10

discovery evasion upx

Malware Config

Signatures

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\system\DisableRegistryTools = "1"	reg.exe

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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	a5f9be8097101861e6ec3e8c7253e6bf_JaffaCakes118.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3652-0-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/memory/3652-5-0x0000000000400000-0x0000000000410000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 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	a5f9be8097101861e6ec3e8c7253e6bf_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Main	reg.exe

Modifies Internet Explorer start page 1 TTPs 1 IoCs

stealer

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Start Page = "www.estudisco.com"	reg.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3652 wrote to memory of 4528	3652	a5f9be8097101861e6ec3e8c7253e6bf_JaffaCakes118.exe	85
PID 3652 wrote to memory of 4528	3652	a5f9be8097101861e6ec3e8c7253e6bf_JaffaCakes118.exe	85
PID 3652 wrote to memory of 4528	3652	a5f9be8097101861e6ec3e8c7253e6bf_JaffaCakes118.exe	85
PID 4528 wrote to memory of 2652	4528	cmd.exe	88
PID 4528 wrote to memory of 2652	4528	cmd.exe	88
PID 4528 wrote to memory of 2652	4528	cmd.exe	88
PID 4528 wrote to memory of 2608	4528	cmd.exe	89
PID 4528 wrote to memory of 2608	4528	cmd.exe	89
PID 4528 wrote to memory of 2608	4528	cmd.exe	89
PID 4528 wrote to memory of 836	4528	cmd.exe	90
PID 4528 wrote to memory of 836	4528	cmd.exe	90
PID 4528 wrote to memory of 836	4528	cmd.exe	90

C:\Users\Admin\AppData\Local\Temp\a5f9be8097101861e6ec3e8c7253e6bf_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a5f9be8097101861e6ec3e8c7253e6bf_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3652
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\60DD.tmp\estudisco.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4528
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main" /v "Start Page" /d "www.estudisco.com" /t "REG_SZ" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies Internet Explorer settings
    - Modifies Internet Explorer start page
    PID:2652
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKEY_CURRENT_USER\Software\Policies\Microsoft\internet Explorer\Control Panel" /v "Homepage" /d "1" /t "REG_DWORD" /f
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2608
- - C:\Windows\SysWOW64\reg.exe
    reg add HKEY_current_user\software\microsoft\windows\currentversion\policies\system /v DisableRegistryTools /t reg_dword /d 00000001
    3⤵
    - Disables RegEdit via registry modification
    - System Location Discovery: System Language Discovery
    PID:836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\60DD.tmp\estudisco.bat

Filesize
487B

MD5
339f90d46b7cb0fa0dd4edd9876731cb

SHA1
569a161b9b6a3714fb3b4dc4569200af03da8e06

SHA256
7814d527a22e3468ce38b5934b5118f3e64b8d9ed6a69c7efb177ef8c955ec06

SHA512
cbc7c0f6f1b74926138c5e9ac40f23d42dd035228ca4928f0bce4d3712aae17bc361c9f3d162d8f79bed56452d8856ea870fae72c55bbddcd649fb26d2f9a33c

Download Submit
memory/3652-0-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3652-5-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads