349cbbd86457d458895c5244a2c4fdbd1725fbfe1234ff58265c435748f9eb1b

General

Target

084775cdbfe7f93941d1066986289090_JaffaCakes118.exe
Size

131KB
MD5

084775cdbfe7f93941d1066986289090
SHA1

515240bff4df8e5915ac65285868ae00bea11e55
SHA256

349cbbd86457d458895c5244a2c4fdbd1725fbfe1234ff58265c435748f9eb1b
SHA512

ee3594eeea7a7760f66839a19e31953121066066461fd16a8088f621f55df4ee1cf4a9b1f11857b9cf384d58cc4a965630e316fbfbb06995a40696063a2f73e2
SSDEEP

3072:ECmzzdcTtDRgEorpwbVLuP4l9WV1oqCgQfBUnPy8LDVBBh:EbOTttgTrayP4l9WV1oqCgQfBUPy8LDL

Score

9^/10

defense_evasion discovery execution impact persistence ransomware

Malware Config

Signatures

Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\d5fd211c.exe	explorer.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\d5fd211 = "C:\\d5fd211c\\d5fd211c.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*5fd211 = "C:\\d5fd211c\\d5fd211c.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\d5fd211c = "C:\\Users\\Admin\\AppData\\Roaming\\d5fd211c.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*5fd211c = "C:\\Users\\Admin\\AppData\\Roaming\\d5fd211c.exe"	explorer.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
5	myexternalip.com
3	ip-addr.es

System Location Discovery: System Language Discovery 1 TTPs 4 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	084775cdbfe7f93941d1066986289090_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vssadmin.exe

Interacts with shadow copies 3 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

Direct Volume Access

T1006

pid	Process
2236	vssadmin.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2544	084775cdbfe7f93941d1066986289090_JaffaCakes118.exe
1996	explorer.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	1736	vssvc.exe
Token: SeRestorePrivilege	1736	vssvc.exe
Token: SeAuditPrivilege	1736	vssvc.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2544 wrote to memory of 1996	2544	084775cdbfe7f93941d1066986289090_JaffaCakes118.exe	30
PID 2544 wrote to memory of 1996	2544	084775cdbfe7f93941d1066986289090_JaffaCakes118.exe	30
PID 2544 wrote to memory of 1996	2544	084775cdbfe7f93941d1066986289090_JaffaCakes118.exe	30
PID 2544 wrote to memory of 1996	2544	084775cdbfe7f93941d1066986289090_JaffaCakes118.exe	30
PID 1996 wrote to memory of 2392	1996	explorer.exe	31
PID 1996 wrote to memory of 2392	1996	explorer.exe	31
PID 1996 wrote to memory of 2392	1996	explorer.exe	31
PID 1996 wrote to memory of 2392	1996	explorer.exe	31
PID 1996 wrote to memory of 2236	1996	explorer.exe	32
PID 1996 wrote to memory of 2236	1996	explorer.exe	32
PID 1996 wrote to memory of 2236	1996	explorer.exe	32
PID 1996 wrote to memory of 2236	1996	explorer.exe	32

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\084775cdbfe7f93941d1066986289090_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\084775cdbfe7f93941d1066986289090_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2544
- C:\Windows\syswow64\explorer.exe
  "C:\Windows\syswow64\explorer.exe"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1996
- - C:\Windows\syswow64\svchost.exe
    -k netsvcs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2392
- - C:\Windows\syswow64\vssadmin.exe
    vssadmin.exe Delete Shadows /All /Quiet
    3⤵
    - System Location Discovery: System Language Discovery
    - Interacts with shadow copies
    PID:2236

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1736

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

1

T1047

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

Direct Volume Access

1

T1006

Indicator Removal

2

T1070

File Deletion

Modify Registry

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2

T1490

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabADCE.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarADF0.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/1996-0-0x00000000000C0000-0x00000000000E5000-memory.dmp

Filesize
148KB

Download
memory/1996-1-0x00000000000C0000-0x00000000000E5000-memory.dmp

Filesize
148KB

Download
memory/2392-5-0x0000000000080000-0x00000000000A5000-memory.dmp

Filesize
148KB

Download
memory/2392-6-0x0000000000080000-0x00000000000A5000-memory.dmp

Filesize
148KB

Download
memory/2392-42-0x0000000000080000-0x00000000000A5000-memory.dmp

Filesize
148KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads