djvu | 5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7

General

Target

JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe
Size

793KB
MD5

2fb56f9dffe10ce21b43a4691751c48f
SHA1

3c6386d2222f8891c89c1d8131311823428549fc
SHA256

5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7
SHA512

8efdb67e6d374634352114b80dbaf041b6c85473979793de384c59ba998dd6d7979aea7584735f07e404e3533ee0f77861636b199615a490d3f0452b34915e2c
SSDEEP

24576:jdptOti49r+03KxhQFy9HTm/a/XH7+Pf:jdpKhi9zP/XHq

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/test1/get.php

Attributes

extension
.udla
offline_id
qwVQoIsE2xLety0oNWloOilSDuIBXJGK86LM3ot1
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 18 IoCs

resource	yara_rule
behavioral2/memory/4572-2-0x0000000002410000-0x000000000252B000-memory.dmp	family_djvu
behavioral2/memory/684-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/684-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/684-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/684-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/684-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5064-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5064-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5064-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5064-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5064-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5064-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5064-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5064-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5064-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5064-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5064-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5064-49-0x0000000000400000-0x0000000000537000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
5116	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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\0985c4a0-c5aa-4e4a-a4e2-287f9acad2b6\\JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe\" --AutoStart"	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe

Looks up external IP address via web service 3 IoCs

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

flow	ioc
21	api.2ip.ua
14	api.2ip.ua
15	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4572 set thread context of 684	4572	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	85
PID 2820 set thread context of 5064	2820	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	90

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	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
684	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe
684	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe
5064	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe
5064	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4572 wrote to memory of 684	4572	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	85
PID 4572 wrote to memory of 684	4572	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	85
PID 4572 wrote to memory of 684	4572	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	85
PID 4572 wrote to memory of 684	4572	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	85
PID 4572 wrote to memory of 684	4572	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	85
PID 4572 wrote to memory of 684	4572	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	85
PID 4572 wrote to memory of 684	4572	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	85
PID 4572 wrote to memory of 684	4572	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	85
PID 4572 wrote to memory of 684	4572	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	85
PID 4572 wrote to memory of 684	4572	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	85
PID 684 wrote to memory of 5116	684	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	86
PID 684 wrote to memory of 5116	684	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	86
PID 684 wrote to memory of 5116	684	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	86
PID 684 wrote to memory of 2820	684	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	87
PID 684 wrote to memory of 2820	684	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	87
PID 684 wrote to memory of 2820	684	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	87
PID 2820 wrote to memory of 5064	2820	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	90
PID 2820 wrote to memory of 5064	2820	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	90
PID 2820 wrote to memory of 5064	2820	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	90
PID 2820 wrote to memory of 5064	2820	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	90
PID 2820 wrote to memory of 5064	2820	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	90
PID 2820 wrote to memory of 5064	2820	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	90
PID 2820 wrote to memory of 5064	2820	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	90
PID 2820 wrote to memory of 5064	2820	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	90
PID 2820 wrote to memory of 5064	2820	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	90
PID 2820 wrote to memory of 5064	2820	JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe	90

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4572
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.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:684
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\0985c4a0-c5aa-4e4a-a4e2-287f9acad2b6" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:5116
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2820
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:5064

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\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12

Filesize
1KB

MD5
67e486b2f148a3fca863728242b6273e

SHA1
452a84c183d7ea5b7c015b597e94af8eef66d44a

SHA256
facaf1c3a4bf232abce19a2d534e495b0d3adc7dbe3797d336249aa6f70adcfb

SHA512
d3a37da3bb10a9736dc03e8b2b49baceef5d73c026e2077b8ebc1b786f2c9b2f807e0aa13a5866cf3b3cafd2bc506242ef139c423eaffb050bbb87773e53881e

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8

Filesize
436B

MD5
971c514f84bba0785f80aa1c23edfd79

SHA1
732acea710a87530c6b08ecdf32a110d254a54c8

SHA256
f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895

SHA512
43dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12

Filesize
174B

MD5
3a192ea1cd1fb78a8508ae780ce3afb3

SHA1
2049d97364eacab466b110a81ea5fe79ce4c725d

SHA256
6d9d2d584106f158dabc3ac59f1d2c5c13ef7ed60161a031dd38357e4d6b1ac0

SHA512
51cff69a272bead40894f1bae67c1076b4f75b19b5b44237546797d546c0dff2bc34f302f77169b8ac6fff3cf234191c69b7dea467d54900e5aca30fba73675e

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8

Filesize
170B

MD5
98e2c093b6c8fb428c13c75cce615450

SHA1
f8e256a1303a7bd6ab31349b8e4a376f8710c88d

SHA256
d6a1834a3655768a37d772fc988a7a1bcb6634840f19cb5e3483e071ffada63d

SHA512
cdccdfb873ec9fb6e235ce4b3bdc00bce26259a716e0ac397569134e216fe277c00e8a3149e3577d5e51f22761a1839779aa182840a7e02827d11d0d292b3b71

Download Submit
C:\Users\Admin\AppData\Local\0985c4a0-c5aa-4e4a-a4e2-287f9acad2b6\JaffaCakes118_5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7.exe

Filesize
793KB

MD5
2fb56f9dffe10ce21b43a4691751c48f

SHA1
3c6386d2222f8891c89c1d8131311823428549fc

SHA256
5aac416b74179cac526c5280874d3befa6992514d57ddc07dc527b2fe8c563f7

SHA512
8efdb67e6d374634352114b80dbaf041b6c85473979793de384c59ba998dd6d7979aea7584735f07e404e3533ee0f77861636b199615a490d3f0452b34915e2c

Download Submit
memory/684-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/684-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/684-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/684-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/684-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2820-19-0x0000000000400000-0x000000000050B000-memory.dmp

Filesize
1.0MB

Download
memory/2820-23-0x0000000000400000-0x000000000050B000-memory.dmp

Filesize
1.0MB

Download
memory/4572-1-0x0000000002370000-0x0000000002405000-memory.dmp

Filesize
596KB

Download
memory/4572-2-0x0000000002410000-0x000000000252B000-memory.dmp

Filesize
1.1MB

Download
memory/5064-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5064-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5064-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5064-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5064-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5064-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5064-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5064-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5064-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5064-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5064-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5064-49-0x0000000000400000-0x0000000000537000-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