4e2b630b85c55a5731e31e38b540539acadabf38210a643116849383ea2e2fab

General

Target

b76317bdbd12e57ba8a4dfea7228f210_JaffaCakes118.exe
Size

348KB
MD5

b76317bdbd12e57ba8a4dfea7228f210
SHA1

fa35ac56dc88227270c29c0c6277f010516c5d0c
SHA256

4e2b630b85c55a5731e31e38b540539acadabf38210a643116849383ea2e2fab
SHA512

ffa273559e500c82e5c8b2d0e02238d12b744a2057969437f10d26fe18f9bbbc141c075263b54165a9b970c42323db8a69fbbe6d0a9546b664b766d308759f63
SSDEEP

6144:wMuR9dHqs2LiZuhYnNfjO+/h9HqR0mJwTWSeULSave2:kR9dHqs0ivnv3HlmSTbeU7

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	b76317bdbd12e57ba8a4dfea7228f210_JaffaCakes118.exe

UPX packed file 14 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3508-0-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3508-3-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3508-4-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3508-5-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3508-6-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3508-7-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3508-8-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3508-17-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3508-18-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3508-20-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3508-23-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3508-24-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3508-27-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3508-37-0x0000000000400000-0x000000000047C000-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\SSS = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b76317bdbd12e57ba8a4dfea7228f210_JaffaCakes118.exe /cs:1 "	b76317bdbd12e57ba8a4dfea7228f210_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SSS = "\"C:\\b1d4ad\\SSb1d_2033.exe\" /s"	b76317bdbd12e57ba8a4dfea7228f210_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\	b76317bdbd12e57ba8a4dfea7228f210_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3444 set thread context of 3508	3444	b76317bdbd12e57ba8a4dfea7228f210_JaffaCakes118.exe	92

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	b76317bdbd12e57ba8a4dfea7228f210_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b76317bdbd12e57ba8a4dfea7228f210_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
4692	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4692	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3444 wrote to memory of 3508	3444	b76317bdbd12e57ba8a4dfea7228f210_JaffaCakes118.exe	92
PID 3444 wrote to memory of 3508	3444	b76317bdbd12e57ba8a4dfea7228f210_JaffaCakes118.exe	92
PID 3444 wrote to memory of 3508	3444	b76317bdbd12e57ba8a4dfea7228f210_JaffaCakes118.exe	92
PID 3444 wrote to memory of 3508	3444	b76317bdbd12e57ba8a4dfea7228f210_JaffaCakes118.exe	92
PID 3444 wrote to memory of 3508	3444	b76317bdbd12e57ba8a4dfea7228f210_JaffaCakes118.exe	92
PID 3508 wrote to memory of 4692	3508	b76317bdbd12e57ba8a4dfea7228f210_JaffaCakes118.exe	93
PID 3508 wrote to memory of 4692	3508	b76317bdbd12e57ba8a4dfea7228f210_JaffaCakes118.exe	93
PID 3508 wrote to memory of 4692	3508	b76317bdbd12e57ba8a4dfea7228f210_JaffaCakes118.exe	93

C:\Users\Admin\AppData\Local\Temp\b76317bdbd12e57ba8a4dfea7228f210_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b76317bdbd12e57ba8a4dfea7228f210_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3444
- C:\Users\Admin\AppData\Local\Temp\b76317bdbd12e57ba8a4dfea7228f210_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\b76317bdbd12e57ba8a4dfea7228f210_JaffaCakes118.exe" "C:\Users\Admin\AppData\Local\Temp\b76317bdbd12e57ba8a4dfea7228f210_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:3508
- - 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:4692

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/3444-2-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3508-7-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3508-3-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3508-4-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3508-5-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3508-6-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3508-0-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3508-8-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3508-17-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3508-18-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3508-20-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3508-23-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3508-24-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3508-27-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3508-37-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads