djvu | 2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db

General

Target

JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe
Size

726KB
MD5

452a191af6aa4aa8e4c784c287d077e3
SHA1

083822c7a4ce790647d5099ac5978bbc72f114a0
SHA256

2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db
SHA512

e6dde03e90c325dce5b9beabb36d882cc4aa0e2caa125e6fa5b6c6663b786ad0e2895b0be0be3526b10e42805189b592e3f3521d3116427a1f92b4413c55a492
SSDEEP

12288:mavsYeCVyMp6bCz9TWUfFBYH3nL8Ylskovgzy+uQIknNOkbdvv3BaHP:ma0YeCV0+FfF6H3nLvygzy33GX3A

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/fhsgtsspen6/get.php

Attributes

extension
.dmay
offline_id
Xe4NOamOTHZrARTiL9dfVzAylFrEWLGGbr2dngt1
payload_url
http://zerit.top/dl/build2.exe

http://fuyt.org/files/1/build3.exe
ransomnote
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rsa_pubkey.plain

Signatures

Detected Djvu ransomware 9 IoCs

resource	yara_rule
behavioral2/memory/3272-2-0x0000000002260000-0x000000000237B000-memory.dmp	family_djvu
behavioral2/memory/3612-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3612-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3612-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3612-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3612-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1668-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1668-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1668-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Djvu family
djvu

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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1272	icacls.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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\0617682f-620d-4bf3-b6f4-ee04374dba72\\JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe\" --AutoStart"	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.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
15	api.2ip.ua
16	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3272 set thread context of 3612	3272	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	83
PID 208 set thread context of 1668	208	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	89

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2948	1668	WerFault.exe	89

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	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3612	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe
3612	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3272 wrote to memory of 3612	3272	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	83
PID 3272 wrote to memory of 3612	3272	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	83
PID 3272 wrote to memory of 3612	3272	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	83
PID 3272 wrote to memory of 3612	3272	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	83
PID 3272 wrote to memory of 3612	3272	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	83
PID 3272 wrote to memory of 3612	3272	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	83
PID 3272 wrote to memory of 3612	3272	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	83
PID 3272 wrote to memory of 3612	3272	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	83
PID 3272 wrote to memory of 3612	3272	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	83
PID 3272 wrote to memory of 3612	3272	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	83
PID 3612 wrote to memory of 1272	3612	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	85
PID 3612 wrote to memory of 1272	3612	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	85
PID 3612 wrote to memory of 1272	3612	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	85
PID 3612 wrote to memory of 208	3612	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	86
PID 3612 wrote to memory of 208	3612	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	86
PID 3612 wrote to memory of 208	3612	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	86
PID 208 wrote to memory of 1668	208	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	89
PID 208 wrote to memory of 1668	208	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	89
PID 208 wrote to memory of 1668	208	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	89
PID 208 wrote to memory of 1668	208	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	89
PID 208 wrote to memory of 1668	208	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	89
PID 208 wrote to memory of 1668	208	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	89
PID 208 wrote to memory of 1668	208	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	89
PID 208 wrote to memory of 1668	208	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	89
PID 208 wrote to memory of 1668	208	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	89
PID 208 wrote to memory of 1668	208	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3272
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3612
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\0617682f-620d-4bf3-b6f4-ee04374dba72" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:1272
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:208
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:1668
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1668 -s 572
        5⤵
        Program crash
        
        PID:2948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1668 -ip 1668
1⤵
PID:1404

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

File and Directory Permissions Modification

Modify Registry

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\0617682f-620d-4bf3-b6f4-ee04374dba72\JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe

Filesize
726KB

MD5
452a191af6aa4aa8e4c784c287d077e3

SHA1
083822c7a4ce790647d5099ac5978bbc72f114a0

SHA256
2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db

SHA512
e6dde03e90c325dce5b9beabb36d882cc4aa0e2caa125e6fa5b6c6663b786ad0e2895b0be0be3526b10e42805189b592e3f3521d3116427a1f92b4413c55a492

Download Submit
memory/208-25-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/208-19-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/1668-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1668-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1668-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3272-1-0x0000000000920000-0x00000000009BF000-memory.dmp

Filesize
636KB

Download
memory/3272-2-0x0000000002260000-0x000000000237B000-memory.dmp

Filesize
1.1MB

Download
memory/3612-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3612-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3612-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3612-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3612-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads