djvu | b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988

General

Target

JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe
Size

786KB
MD5

a410eb9458e0abf6d1ed86aef1273da7
SHA1

01f9893616e209bc858bcb9ce77c5fe6fb91ba3a
SHA256

b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988
SHA512

5d7ee1cd94ea47e15124358356c4d071a171d03966b136a0427e402726a90178a0ea8ce15129ee909c1d2caef37af10728475f32bb735311564e7728c514ff66
SSDEEP

12288:4t5b5KybO/D+x1mySLfuJXNeqAjoM9ZRcuZsvic6XB2lPss4ov6PdoLP5P:41NO+y+J9eqAZvLsvv/KPdoLP1

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.wdlo
offline_id
i0fXrUHVihm5xsI9Icg243YMPJqd748Ocimkyjt1
payload_url
http://zerit.top/dl/build2.exe

http://fuyt.org/files/1/build3.exe
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-0S984cQ4B3 Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0430JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 18 IoCs

resource	yara_rule
behavioral2/memory/1248-2-0x0000000002200000-0x000000000231B000-memory.dmp	family_djvu
behavioral2/memory/1088-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1088-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1088-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1088-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1088-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/628-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/628-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/628-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/628-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/628-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/628-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/628-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/628-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/628-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/628-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/628-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/628-49-0x0000000000400000-0x0000000000537000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3488	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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\d3db221f-41bb-4277-aa00-47b68d847ed8\\JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe\" --AutoStart"	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.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
4	api.2ip.ua
7	api.2ip.ua
18	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1248 set thread context of 1088	1248	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	82
PID 2680 set thread context of 628	2680	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	86

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	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1088	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe
1088	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe
628	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe
628	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1248 wrote to memory of 1088	1248	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	82
PID 1248 wrote to memory of 1088	1248	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	82
PID 1248 wrote to memory of 1088	1248	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	82
PID 1248 wrote to memory of 1088	1248	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	82
PID 1248 wrote to memory of 1088	1248	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	82
PID 1248 wrote to memory of 1088	1248	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	82
PID 1248 wrote to memory of 1088	1248	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	82
PID 1248 wrote to memory of 1088	1248	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	82
PID 1248 wrote to memory of 1088	1248	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	82
PID 1248 wrote to memory of 1088	1248	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	82
PID 1088 wrote to memory of 3488	1088	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	83
PID 1088 wrote to memory of 3488	1088	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	83
PID 1088 wrote to memory of 3488	1088	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	83
PID 1088 wrote to memory of 2680	1088	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	84
PID 1088 wrote to memory of 2680	1088	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	84
PID 1088 wrote to memory of 2680	1088	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	84
PID 2680 wrote to memory of 628	2680	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	86
PID 2680 wrote to memory of 628	2680	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	86
PID 2680 wrote to memory of 628	2680	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	86
PID 2680 wrote to memory of 628	2680	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	86
PID 2680 wrote to memory of 628	2680	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	86
PID 2680 wrote to memory of 628	2680	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	86
PID 2680 wrote to memory of 628	2680	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	86
PID 2680 wrote to memory of 628	2680	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	86
PID 2680 wrote to memory of 628	2680	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	86
PID 2680 wrote to memory of 628	2680	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1248
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.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:1088
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\d3db221f-41bb-4277-aa00-47b68d847ed8" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:3488
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2680
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:628

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
ddd7f59787a6ea0e72740fd72644dc84

SHA1
57fc6d98eedd1848d6d7690e9432486559030a68

SHA256
4502ea0849ae3fa5d5cc2a61332ef0aac5e9be5ab61acd453393741f78fff9ca

SHA512
d1985022187a1b73a0284bebbe659a0804f7dc1ec6ead775f02497260d3c221d375da97b75dc4fd8876117d7c8d9ba83ce70f9d3733437be9c045b4d07d0402e

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

Filesize
170B

MD5
3232f02d486e8d87c700c8a2bdc723c8

SHA1
e6a2aa80894e0e1019f9b5400d02df4e3d752fd2

SHA256
a92faded7e7534c15399f806884124f621dc050770dd52442b5d0924cfb0f60f

SHA512
e181662a7be9ffe45b3146e6c7ba45f6964044de53432f4b84b4ec7b361fff6a74c4b5d00c2973224c3b20188e753f0be7571f783aa5f346a014be7ee5af6eeb

Download Submit
C:\Users\Admin\AppData\Local\d3db221f-41bb-4277-aa00-47b68d847ed8\JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe

Filesize
786KB

MD5
a410eb9458e0abf6d1ed86aef1273da7

SHA1
01f9893616e209bc858bcb9ce77c5fe6fb91ba3a

SHA256
b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988

SHA512
5d7ee1cd94ea47e15124358356c4d071a171d03966b136a0427e402726a90178a0ea8ce15129ee909c1d2caef37af10728475f32bb735311564e7728c514ff66

Download Submit
memory/628-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/628-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/628-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/628-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/628-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/628-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/628-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/628-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/628-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/628-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/628-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/628-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1088-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1088-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1088-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1088-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1088-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1248-1-0x0000000000620000-0x00000000006BB000-memory.dmp

Filesize
620KB

Download
memory/1248-2-0x0000000002200000-0x000000000231B000-memory.dmp

Filesize
1.1MB

Download
memory/2680-23-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2680-19-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads