djvu | 59d0891001fbd6107176eabf298e6247ebb7c9da90e2e31c342d3333e50679c9

Analysis

max time kernel
142s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-01-2025 09:25

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General

Target

JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe
Size

804KB
MD5

1b91bf136ea911e84d372e78222f2a54
SHA1

58813bc4c7e6a160c127b8f222042f88fb470126
SHA256

59d0891001fbd6107176eabf298e6247ebb7c9da90e2e31c342d3333e50679c9
SHA512

9774e559ceb5ae1e6ec46ec1cc7e40c18f42837d741bd7e761b1c88c880e50507393114f3094b35888055557de88bc5a42d55f32dc19b88fda02024dbd80729e
SSDEEP

24576:EfhYFVaIWyVCbJ5iuy0YK208q6RW4wgVxBfDo:eh4VxWyVCbc823q6RW5gVx

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

http://rlrz.org/lancer/get.php

Attributes

extension
.zaps
offline_id
xcdIdDNFh62dy3iJsba1COhcfDENsbjPHQQ2Eht1
payload_url
http://znpst.top/dl/build2.exe

http://rlrz.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-pk3SGFlmek 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: 0341gSd743d

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2736-2-0x0000000000900000-0x0000000000A1B000-memory.dmp	family_djvu
behavioral1/memory/2828-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2828-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2828-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2828-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3024-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3024-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3024-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3024-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3024-56-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3024-58-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3024-62-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3024-60-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3024-63-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3024-64-0x0000000000400000-0x0000000000537000-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
2544	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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\60ad5426-c421-4520-bcfc-563d2c4f628a\\JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe\" --AutoStart"	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.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 2736 set thread context of 2828	2736	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	31
PID 592 set thread context of 3024	592	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	34

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_1b91bf136ea911e84d372e78222f2a54.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2828	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe
2828	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe
3024	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe
3024	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 2828	2736	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	31
PID 2736 wrote to memory of 2828	2736	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	31
PID 2736 wrote to memory of 2828	2736	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	31
PID 2736 wrote to memory of 2828	2736	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	31
PID 2736 wrote to memory of 2828	2736	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	31
PID 2736 wrote to memory of 2828	2736	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	31
PID 2736 wrote to memory of 2828	2736	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	31
PID 2736 wrote to memory of 2828	2736	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	31
PID 2736 wrote to memory of 2828	2736	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	31
PID 2736 wrote to memory of 2828	2736	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	31
PID 2736 wrote to memory of 2828	2736	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	31
PID 2828 wrote to memory of 2544	2828	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	32
PID 2828 wrote to memory of 2544	2828	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	32
PID 2828 wrote to memory of 2544	2828	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	32
PID 2828 wrote to memory of 2544	2828	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	32
PID 2828 wrote to memory of 592	2828	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	33
PID 2828 wrote to memory of 592	2828	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	33
PID 2828 wrote to memory of 592	2828	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	33
PID 2828 wrote to memory of 592	2828	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	33
PID 592 wrote to memory of 3024	592	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	34
PID 592 wrote to memory of 3024	592	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	34
PID 592 wrote to memory of 3024	592	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	34
PID 592 wrote to memory of 3024	592	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	34
PID 592 wrote to memory of 3024	592	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	34
PID 592 wrote to memory of 3024	592	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	34
PID 592 wrote to memory of 3024	592	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	34
PID 592 wrote to memory of 3024	592	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	34
PID 592 wrote to memory of 3024	592	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	34
PID 592 wrote to memory of 3024	592	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	34
PID 592 wrote to memory of 3024	592	JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe	34

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2736
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2828
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\60ad5426-c421-4520-bcfc-563d2c4f628a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2544
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:592
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:3024

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
f72a267c9dbd7d88f80f8e9b9cacb136

SHA1
168759a05ea6b121a5e1c003359a9570dc86bd3d

SHA256
0166d6a8293254db45ae428d5e964a0d3a2575392174c42a0abc8d662f363414

SHA512
e698e8981d1984b29dc3bfc9205aa96e3cc61959a42352d14ddeda95b8c8eebf42f2261fd779fccb2ee7436d0dc0b358dc2bb80ff42ac261a256124ca4dd0d30

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

Filesize
342B

MD5
39f0f29827b6106f544895f010fa3614

SHA1
57025cf071368a6d4e1f9089e2a69c9c26e1c0b6

SHA256
114df7738a50bf9f0c7170936b6cba271d5068a46e3a6663515a87a7d1bbb5c4

SHA512
11fa47da4ad04fb71d6907c6be45342a33cd232db236c8da60d0292f4d27cb9794a4017c4d1e14e612390d4ed69f2a01eff0b00a1d7a5389fc0b0882629c953a

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

Filesize
170B

MD5
2fd765b8eaa93f914b12fb79ea0f5e6b

SHA1
8f895520954ec646774a38ebbc574b50d265b5ce

SHA256
bf2e0fe6c93dbc71f678ae7a09575548f90bdebfc8f2d9e1334ad7827555b7d1

SHA512
11e2236ff4025f01a64cfe9cab8e833c512d893860172595b3c7319075047d336c3c37b91631243abee5e4411da5916068eecefc3dee6059ba5b42718ca8a059

Download Submit
C:\Users\Admin\AppData\Local\60ad5426-c421-4520-bcfc-563d2c4f628a\JaffaCakes118_1b91bf136ea911e84d372e78222f2a54.exe

Filesize
804KB

MD5
1b91bf136ea911e84d372e78222f2a54

SHA1
58813bc4c7e6a160c127b8f222042f88fb470126

SHA256
59d0891001fbd6107176eabf298e6247ebb7c9da90e2e31c342d3333e50679c9

SHA512
9774e559ceb5ae1e6ec46ec1cc7e40c18f42837d741bd7e761b1c88c880e50507393114f3094b35888055557de88bc5a42d55f32dc19b88fda02024dbd80729e

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabED6B.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/592-38-0x0000000000400000-0x00000000008F8000-memory.dmp

Filesize
5.0MB

Download
memory/592-32-0x0000000000330000-0x00000000003C2000-memory.dmp

Filesize
584KB

Download
memory/2736-0-0x0000000000260000-0x00000000002F2000-memory.dmp

Filesize
584KB

Download
memory/2736-7-0x0000000000260000-0x00000000002F2000-memory.dmp

Filesize
584KB

Download
memory/2736-2-0x0000000000900000-0x0000000000A1B000-memory.dmp

Filesize
1.1MB

Download
memory/2736-1-0x0000000000260000-0x00000000002F2000-memory.dmp

Filesize
584KB

Download
memory/2828-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2828-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2828-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2828-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2828-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3024-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3024-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3024-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3024-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3024-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3024-58-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3024-62-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3024-60-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3024-63-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3024-64-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download