djvu | 0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090

Analysis

max time kernel
141s
max time network
130s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28/12/2024, 22:52

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General

Target

JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe
Size

726KB
MD5

e38d1addd662e41f144c741a67939dae
SHA1

e305c98c5651031d31a71b0c7b787235929acac1
SHA256

0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090
SHA512

2fcb3ce92945495f96a43a50ffd12fb5341a704c04df8b1d98ec051d94f79be21fa527fac26eaaa5514133c9ca0b5de2c4c125125c44d524f86de8a96ffb7cb4
SSDEEP

12288:q12jelgrKLxwzdU1IcREHl80MZ8g8+Hq4aujhn/WPnSYE4aO3xOh2WHgXp7B:q1keSWLCpU1IBC3xH/xN0nSYE4aSO

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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
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-FT7BNVbXC9 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: 0458JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2016-2-0x00000000004C0000-0x00000000005DB000-memory.dmp	family_djvu
behavioral1/memory/2896-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2896-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2896-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2896-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-62-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-68-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-67-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-69-0x0000000000400000-0x0000000000537000-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
3060	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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\adf6fae9-f180-49fa-a17f-7851768ded3c\\JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe\" --AutoStart"	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.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
5	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2016 set thread context of 2896	2016	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	31
PID 2648 set thread context of 2696	2648	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	35

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_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2896	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe
2896	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe
2696	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe
2696	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 2896	2016	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	31
PID 2016 wrote to memory of 2896	2016	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	31
PID 2016 wrote to memory of 2896	2016	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	31
PID 2016 wrote to memory of 2896	2016	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	31
PID 2016 wrote to memory of 2896	2016	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	31
PID 2016 wrote to memory of 2896	2016	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	31
PID 2016 wrote to memory of 2896	2016	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	31
PID 2016 wrote to memory of 2896	2016	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	31
PID 2016 wrote to memory of 2896	2016	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	31
PID 2016 wrote to memory of 2896	2016	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	31
PID 2016 wrote to memory of 2896	2016	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	31
PID 2896 wrote to memory of 3060	2896	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	33
PID 2896 wrote to memory of 3060	2896	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	33
PID 2896 wrote to memory of 3060	2896	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	33
PID 2896 wrote to memory of 3060	2896	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	33
PID 2896 wrote to memory of 2648	2896	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	34
PID 2896 wrote to memory of 2648	2896	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	34
PID 2896 wrote to memory of 2648	2896	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	34
PID 2896 wrote to memory of 2648	2896	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	34
PID 2648 wrote to memory of 2696	2648	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	35
PID 2648 wrote to memory of 2696	2648	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	35
PID 2648 wrote to memory of 2696	2648	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	35
PID 2648 wrote to memory of 2696	2648	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	35
PID 2648 wrote to memory of 2696	2648	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	35
PID 2648 wrote to memory of 2696	2648	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	35
PID 2648 wrote to memory of 2696	2648	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	35
PID 2648 wrote to memory of 2696	2648	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	35
PID 2648 wrote to memory of 2696	2648	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	35
PID 2648 wrote to memory of 2696	2648	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	35
PID 2648 wrote to memory of 2696	2648	JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe	35

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2896
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\adf6fae9-f180-49fa-a17f-7851768ded3c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:3060
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2648
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2696

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
91cab4547c848b7a1d3623e2103366f8

SHA1
c7d05604d65c8a23481057e299c057d2847c0039

SHA256
36b049a049e08ed5d422a56955baaafd4d8447f065217113cbbac0f066be6397

SHA512
c12891e601df10802e7fbaabc25c63437819791609731459ebc5d61878a9c95de553db867a9864904afd6cb115289015c5db413038cf3f343a7cad69c302736f

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

Filesize
170B

MD5
9eb239a8310c554beb5fa82f5d128c29

SHA1
7140129c0b8d81461ed868997feec530586cc471

SHA256
d04c7946a22642a7087d80216c97d339c4cd82288b4306639acd2181c37df52b

SHA512
b711cd063702bcddc55646f651e19f7db09f69aeac054c3b45bfc9b9a5bfb454e901ed9d650896208135a44bfffaea72ce050b32d3fceda68de0c99c3b9833f6

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab53E.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\adf6fae9-f180-49fa-a17f-7851768ded3c\JaffaCakes118_0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090.exe

Filesize
726KB

MD5
e38d1addd662e41f144c741a67939dae

SHA1
e305c98c5651031d31a71b0c7b787235929acac1

SHA256
0a2f4cc3922592b886e164a0a87b711a708d39d57ddb8283d99f1fa7467ef090

SHA512
2fcb3ce92945495f96a43a50ffd12fb5341a704c04df8b1d98ec051d94f79be21fa527fac26eaaa5514133c9ca0b5de2c4c125125c44d524f86de8a96ffb7cb4

Download Submit
memory/2016-7-0x0000000000270000-0x0000000000302000-memory.dmp

Filesize
584KB

Download
memory/2016-0-0x0000000000270000-0x0000000000302000-memory.dmp

Filesize
584KB

Download
memory/2016-2-0x00000000004C0000-0x00000000005DB000-memory.dmp

Filesize
1.1MB

Download
memory/2016-1-0x0000000000270000-0x0000000000302000-memory.dmp

Filesize
584KB

Download
memory/2648-37-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2648-30-0x0000000001D40000-0x0000000001DD2000-memory.dmp

Filesize
584KB

Download
memory/2648-31-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2696-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2696-62-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2696-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2696-69-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2696-67-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2696-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2696-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2696-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2696-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2696-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2896-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2896-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2896-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2896-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2896-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download