djvu | 723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850

Analysis

max time kernel
145s
max time network
132s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 14:22

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General

Target

JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe
Size

758KB
MD5

52814aea246e012808f849f2128c4e4e
SHA1

812da6d3b5bde9c59c8571a1aa6b2125390637bb
SHA256

723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850
SHA512

2e5a140a3972e1a306f445487fec11c9c4a39f238865df0f811a283381928fd521b45315f8b3cc72c8d202b728de4d2d65997de6146774e8789be70189e0a403
SSDEEP

12288:XGuSrx+Meb1U7hVpEZFn6HqTabMHWHkYakPpQ3cnsaMzItHl4lZO2g56dFhirePR:2x+xiVpEZYHXMwVmMr71ahzlq

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

http://fuyt.org/fhsgtsspen6/get.php

Attributes

extension
.qpss
offline_id
miqhSGmGE63yWs53FTz0fnp8eCARpnaYE3O3p2t1
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-0SLhZxAjRX 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: 0448JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/1404-2-0x0000000001E70000-0x0000000001F8B000-memory.dmp	family_djvu
behavioral1/memory/2336-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2336-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2336-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2336-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2760-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2760-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2760-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2760-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2760-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2760-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2760-64-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2760-67-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2760-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2760-68-0x0000000000400000-0x0000000000537000-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
2848	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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\51573bdb-66e2-4a09-a08b-5a5cf33dd7e0\\JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe\" --AutoStart"	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.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 1404 set thread context of 2336	1404	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	31
PID 3008 set thread context of 2760	3008	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.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	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2336	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe
2336	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe
2760	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe
2760	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1404 wrote to memory of 2336	1404	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	31
PID 1404 wrote to memory of 2336	1404	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	31
PID 1404 wrote to memory of 2336	1404	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	31
PID 1404 wrote to memory of 2336	1404	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	31
PID 1404 wrote to memory of 2336	1404	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	31
PID 1404 wrote to memory of 2336	1404	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	31
PID 1404 wrote to memory of 2336	1404	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	31
PID 1404 wrote to memory of 2336	1404	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	31
PID 1404 wrote to memory of 2336	1404	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	31
PID 1404 wrote to memory of 2336	1404	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	31
PID 1404 wrote to memory of 2336	1404	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	31
PID 2336 wrote to memory of 2848	2336	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	33
PID 2336 wrote to memory of 2848	2336	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	33
PID 2336 wrote to memory of 2848	2336	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	33
PID 2336 wrote to memory of 2848	2336	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	33
PID 2336 wrote to memory of 3008	2336	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	34
PID 2336 wrote to memory of 3008	2336	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	34
PID 2336 wrote to memory of 3008	2336	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	34
PID 2336 wrote to memory of 3008	2336	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	34
PID 3008 wrote to memory of 2760	3008	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	35
PID 3008 wrote to memory of 2760	3008	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	35
PID 3008 wrote to memory of 2760	3008	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	35
PID 3008 wrote to memory of 2760	3008	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	35
PID 3008 wrote to memory of 2760	3008	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	35
PID 3008 wrote to memory of 2760	3008	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	35
PID 3008 wrote to memory of 2760	3008	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	35
PID 3008 wrote to memory of 2760	3008	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	35
PID 3008 wrote to memory of 2760	3008	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	35
PID 3008 wrote to memory of 2760	3008	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	35
PID 3008 wrote to memory of 2760	3008	JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe	35

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1404
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2336
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\51573bdb-66e2-4a09-a08b-5a5cf33dd7e0" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2848
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3008
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2760

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
b83ec520bde52ef379d168f60c464eca

SHA1
4b6053746b038db1c2fdeecbd533f5d6634974bc

SHA256
d845e492bfb2d78adc472602c3b92b511888ffc8d056c7d5dfd67dd469f1d287

SHA512
da3538a8d256f6887386a9c5f3e48582dd50f97f6ab0b1e3df1d48d215c22da0ebb814cfbb89dc5db207f96d8b2276fadb075f88c89ec76af2f27fee7afaaf12

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

Filesize
170B

MD5
cd44bed86f2d7c5fdb6ad24d7d2a5a76

SHA1
cd3f29c1dfe61dd5817486ae1b51e603d900f63e

SHA256
1e035eb223e318eaaa4b31459a68b20daf6dcc3109bd94fb38aaee1fed5d6d4a

SHA512
78240979a78eb6167e83beb3970dd2f09965aa91d39ad1a80ac9d4861db41375c604aa61ef6942d81a76f58d9f54cf7e0be287ad54e072e6f1c09938bd54ed94

Download Submit
C:\Users\Admin\AppData\Local\51573bdb-66e2-4a09-a08b-5a5cf33dd7e0\JaffaCakes118_723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850.exe

Filesize
758KB

MD5
52814aea246e012808f849f2128c4e4e

SHA1
812da6d3b5bde9c59c8571a1aa6b2125390637bb

SHA256
723f78f0518a0f4b92572fe003c9550fee05b3ba6bc7b658e016bd9bbb740850

SHA512
2e5a140a3972e1a306f445487fec11c9c4a39f238865df0f811a283381928fd521b45315f8b3cc72c8d202b728de4d2d65997de6146774e8789be70189e0a403

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabEC81.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/1404-1-0x0000000000330000-0x00000000003C2000-memory.dmp

Filesize
584KB

Download
memory/1404-2-0x0000000001E70000-0x0000000001F8B000-memory.dmp

Filesize
1.1MB

Download
memory/1404-0-0x0000000000330000-0x00000000003C2000-memory.dmp

Filesize
584KB

Download
memory/1404-7-0x0000000000330000-0x00000000003C2000-memory.dmp

Filesize
584KB

Download
memory/2336-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2336-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2336-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2336-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2336-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2760-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2760-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2760-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2760-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2760-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2760-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2760-64-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2760-67-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2760-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2760-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3008-35-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/3008-30-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/3008-29-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download