eb7d1c36b5beed937341b188d4b174f953348b364d2b726322f7b2de7222052c

General

Target

c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe
Size

323KB
MD5

c84eaddea738ab53f0d577957be252c6
SHA1

babff72c370a221469ea00d75975ce82860c69df
SHA256

eb7d1c36b5beed937341b188d4b174f953348b364d2b726322f7b2de7222052c
SHA512

c536d2e392ec58fd92d445e7a4fcc118a3dffc10ca178aec05dfb0d24b89e877eddb490f7fd837a4addd0b19e99e3dea343dce87aeec2063d4b5784775ba8e45
SSDEEP

6144:gl+340H7xeCBg3VbraHRi7bsFxmeAqTjhIimf7Nx3AkxENpJBkH1M2:oOP79Bgtwi7wxmeAqT9KBx3AkxENpJqn

Score

7^/10

discovery 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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe

UPX packed file 14 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4704-0-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral2/memory/4704-3-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral2/memory/4704-4-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral2/memory/4704-5-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral2/memory/4704-6-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral2/memory/4704-7-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral2/memory/4704-8-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral2/memory/4704-17-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral2/memory/4704-18-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral2/memory/4704-23-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral2/memory/4704-24-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral2/memory/4704-25-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral2/memory/4704-27-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral2/memory/4704-29-0x0000000000400000-0x00000000004A5000-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-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\BMP = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe /cs:1 "	c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\BMP = "\"C:\\b38539\\BMb38_2180.exe\" /s"	c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe

Checks for any installed AV software in registry 1 TTPs 1 IoCs

Security Software Discovery

T1518.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Eset\Nod\	c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1116 set thread context of 4704	1116	c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe	91

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 3 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	c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
3616	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3616	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1116 wrote to memory of 4704	1116	c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe	91
PID 1116 wrote to memory of 4704	1116	c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe	91
PID 1116 wrote to memory of 4704	1116	c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe	91
PID 1116 wrote to memory of 4704	1116	c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe	91
PID 1116 wrote to memory of 4704	1116	c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe	91
PID 4704 wrote to memory of 3616	4704	c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe	92
PID 4704 wrote to memory of 3616	4704	c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe	92
PID 4704 wrote to memory of 3616	4704	c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe	92

C:\Users\Admin\AppData\Local\Temp\c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1116
- C:\Users\Admin\AppData\Local\Temp\c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe" "C:\Users\Admin\AppData\Local\Temp\c84eaddea738ab53f0d577957be252c6_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Checks for any installed AV software in registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4704
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill.exe /F /IM MSASCui* /IM avg* /IM ash* /IM McSA* /IM msse*
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3616

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Software Discovery

1

T1518

Security Software Discovery

1

T1518.001

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

memory/1116-2-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/4704-7-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/4704-3-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/4704-4-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/4704-5-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/4704-6-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/4704-0-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/4704-8-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/4704-17-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/4704-18-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/4704-23-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/4704-24-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/4704-25-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/4704-27-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/4704-29-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads