djvu | b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988

Analysis

max time kernel
142s
max time network
130s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-12-2024 17:33

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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

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 15 IoCs

resource	yara_rule
behavioral1/memory/2364-2-0x0000000001D60000-0x0000000001E7B000-memory.dmp	family_djvu
behavioral1/memory/2664-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2664-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2664-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2664-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-69-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-68-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2596-70-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

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

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2728	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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\9626d665-8858-4283-8067-c9f9eab1b0d1\\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
3	api.2ip.ua
4	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2364 set thread context of 2664	2364	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	30
PID 1056 set thread context of 2596	1056	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	33

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2664	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe
2664	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe
2596	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe
2596	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 2664	2364	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	30
PID 2364 wrote to memory of 2664	2364	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	30
PID 2364 wrote to memory of 2664	2364	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	30
PID 2364 wrote to memory of 2664	2364	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	30
PID 2364 wrote to memory of 2664	2364	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	30
PID 2364 wrote to memory of 2664	2364	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	30
PID 2364 wrote to memory of 2664	2364	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	30
PID 2364 wrote to memory of 2664	2364	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	30
PID 2364 wrote to memory of 2664	2364	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	30
PID 2364 wrote to memory of 2664	2364	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	30
PID 2364 wrote to memory of 2664	2364	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	30
PID 2664 wrote to memory of 2728	2664	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	31
PID 2664 wrote to memory of 2728	2664	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	31
PID 2664 wrote to memory of 2728	2664	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	31
PID 2664 wrote to memory of 2728	2664	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	31
PID 2664 wrote to memory of 1056	2664	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	32
PID 2664 wrote to memory of 1056	2664	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	32
PID 2664 wrote to memory of 1056	2664	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	32
PID 2664 wrote to memory of 1056	2664	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	32
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	33
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	33
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	33
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	33
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	33
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	33
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	33
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	33
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	33
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	33
PID 1056 wrote to memory of 2596	1056	JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe	33

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:2364
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2664
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\9626d665-8858-4283-8067-c9f9eab1b0d1" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2728
- - 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:1056
  - - 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:2596

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

File and Directory Permissions Modification

T1222

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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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
f611f69e11aa1cdbea3fd2b7fd2b0260

SHA1
878a1c0c08a375a890f0e38d92654989a167d9c2

SHA256
d5f9fdddfb2fe1db19da795557e07a6e8feecf182172327712bbb5732c611734

SHA512
b5fa3aa6b859b4e0323e94da65bf5eff979b8578549614e609b10622642aeed897274c434af857050339b61d57d43f6b252916227402211cf90db316537a5de8

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
443ef8175b58f8f92a8ea0922274fb08

SHA1
7206599f54e3cfdcffc82af0447dc9f669ac0ea0

SHA256
a161d61cd632eabf3d5b1601e8d0c1a70867cf0217851765e3c3926312a4f096

SHA512
26a0fb11fa613ac53a3b47a7d9ea1d13e5176cca65b02a9c28fd2d8265a864b5202f16ed691bdefd6203d31ee7c5830e31965ccb9b6b6772365090c78aca868a

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

Filesize
170B

MD5
fd743f908ffb5a8a2a43d3444c765de4

SHA1
0cf2124fd1688106ea0eeb23c44eae3f3474f954

SHA256
0a0e61c55c367634f569742547d09ab19b3dae0ea8ffabeb27c9a04b1b577a7d

SHA512
3883b481e7230857fe9633c2829de6afd4f094021013e41830f0a78f0391a56b0a217bbf1b514b94a31e3c3d10483718115daa228305e109d2103ffcf6c426b4

Download Submit
C:\Users\Admin\AppData\Local\9626d665-8858-4283-8067-c9f9eab1b0d1\JaffaCakes118_b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988.exe

Filesize
786KB

MD5
a410eb9458e0abf6d1ed86aef1273da7

SHA1
01f9893616e209bc858bcb9ce77c5fe6fb91ba3a

SHA256
b3fb083e42d657898d00ae20d6d53211aae543caac80add3c3dc6381ea3f1988

SHA512
5d7ee1cd94ea47e15124358356c4d071a171d03966b136a0427e402726a90178a0ea8ce15129ee909c1d2caef37af10728475f32bb735311564e7728c514ff66

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab194B.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/1056-30-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/1056-31-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/1056-35-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2364-0-0x0000000000540000-0x00000000005D2000-memory.dmp

Filesize
584KB

Download
memory/2364-7-0x0000000000540000-0x00000000005D2000-memory.dmp

Filesize
584KB

Download
memory/2364-2-0x0000000001D60000-0x0000000001E7B000-memory.dmp

Filesize
1.1MB

Download
memory/2364-1-0x0000000000540000-0x00000000005D2000-memory.dmp

Filesize
584KB

Download
memory/2596-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-70-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-69-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2596-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2664-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2664-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2664-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2664-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2664-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download