djvu | 1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442

Analysis

max time kernel
145s
max time network
139s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 20:15

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General

Target

JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe
Size

769KB
MD5

056d464d213ff65349e6206c800434b2
SHA1

6ebe03e781e95744ba7d19f394eb60f4d8656098
SHA256

1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442
SHA512

eb5f366b288031851d027a3771d6765efc43079d3e9bd19159b620fc4e4f51961d8a418a362f399663e5994c2a216eea07454dfa3bf8afb869b81edfd51cde4f
SSDEEP

24576:FNmRKipSS3cb57RjHMNROH2biWBHzZ+YijBu:FNaNcTjMNRjiWtzZfiM

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.tuid
offline_id
LgcOIftV0dQfFBQStVNfb8BhHy8tHRPvXwSiFwt1
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-FglTTmgzZT 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: 0440tOjkfd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2580-7-0x00000000006F0000-0x000000000080B000-memory.dmp	family_djvu
behavioral1/memory/2904-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2904-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2904-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2904-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2676-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2676-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2676-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2676-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2676-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2676-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2676-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2676-69-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2676-68-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2676-70-0x0000000000400000-0x0000000000537000-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
2852	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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\24c46ef9-2fa1-43cc-961f-bcb70ced3ce0\\JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe\" --AutoStart"	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.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 2580 set thread context of 2904	2580	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	30
PID 2932 set thread context of 2676	2932	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.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_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2904	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe
2904	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe
2676	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe
2676	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2580 wrote to memory of 2904	2580	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	30
PID 2580 wrote to memory of 2904	2580	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	30
PID 2580 wrote to memory of 2904	2580	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	30
PID 2580 wrote to memory of 2904	2580	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	30
PID 2580 wrote to memory of 2904	2580	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	30
PID 2580 wrote to memory of 2904	2580	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	30
PID 2580 wrote to memory of 2904	2580	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	30
PID 2580 wrote to memory of 2904	2580	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	30
PID 2580 wrote to memory of 2904	2580	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	30
PID 2580 wrote to memory of 2904	2580	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	30
PID 2580 wrote to memory of 2904	2580	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	30
PID 2904 wrote to memory of 2852	2904	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	31
PID 2904 wrote to memory of 2852	2904	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	31
PID 2904 wrote to memory of 2852	2904	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	31
PID 2904 wrote to memory of 2852	2904	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	31
PID 2904 wrote to memory of 2932	2904	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	32
PID 2904 wrote to memory of 2932	2904	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	32
PID 2904 wrote to memory of 2932	2904	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	32
PID 2904 wrote to memory of 2932	2904	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	32
PID 2932 wrote to memory of 2676	2932	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	33
PID 2932 wrote to memory of 2676	2932	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	33
PID 2932 wrote to memory of 2676	2932	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	33
PID 2932 wrote to memory of 2676	2932	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	33
PID 2932 wrote to memory of 2676	2932	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	33
PID 2932 wrote to memory of 2676	2932	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	33
PID 2932 wrote to memory of 2676	2932	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	33
PID 2932 wrote to memory of 2676	2932	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	33
PID 2932 wrote to memory of 2676	2932	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	33
PID 2932 wrote to memory of 2676	2932	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	33
PID 2932 wrote to memory of 2676	2932	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2580
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2904
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\24c46ef9-2fa1-43cc-961f-bcb70ced3ce0" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2852
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2932
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2676

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
b79db074116c42c0849ed7a523955ecf

SHA1
03a4a00442f07c3639e03d12d9e82a2ac66efcd7

SHA256
fbde09d68d167ffba9d7d01ba6d9c7cdce62b837efbb18b4288a1ae86a5b8181

SHA512
d2e136eba0edd4d88687d078d1fadf54c4d75e2fb9704ad0e5350c24491fdb30cb33242af05dead4d14d596ea230ebad29813449e26f90ad1dff0ee2699a9965

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

Filesize
342B

MD5
9d6b0b2c1923c1be51a53191dd170d4b

SHA1
be379e65b2fc3146618178f3809c4f6b99bdbff2

SHA256
b9703b9324ad2eef03b07b1829ee58a4dcd03cc7599971a8037d316937313f7a

SHA512
4acbd592b4bc5934d4563dba06b8015530184ee00b7da268bc7396568f199cdff84aa444f349184b1664e03f0ee17cfd43694a6e3e02452c9d234e825d68ec50

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

Filesize
170B

MD5
d4e90d03ca3df51407e7dc112c20abb1

SHA1
7d76383b7452b28d9439f4734540c2b04e89d871

SHA256
2b1263b3bde710cf753883d72095b7d832ec4a5570e87fea28a34a273a435ca3

SHA512
e02352bcab7efc8c6dc8a956fb8e30794efb464bd16d960bb617a2cb695c52b80c48713575db62b17696bf967063a9a8df00cd8cbfde9fabd85689fbc42ff7d7

Download Submit
C:\Users\Admin\AppData\Local\24c46ef9-2fa1-43cc-961f-bcb70ced3ce0\JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe

Filesize
769KB

MD5
056d464d213ff65349e6206c800434b2

SHA1
6ebe03e781e95744ba7d19f394eb60f4d8656098

SHA256
1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442

SHA512
eb5f366b288031851d027a3771d6765efc43079d3e9bd19159b620fc4e4f51961d8a418a362f399663e5994c2a216eea07454dfa3bf8afb869b81edfd51cde4f

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab895B.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2580-1-0x0000000000330000-0x00000000003C2000-memory.dmp

Filesize
584KB

Download
memory/2580-6-0x0000000000330000-0x00000000003C2000-memory.dmp

Filesize
584KB

Download
memory/2580-7-0x00000000006F0000-0x000000000080B000-memory.dmp

Filesize
1.1MB

Download
memory/2580-0-0x0000000000330000-0x00000000003C2000-memory.dmp

Filesize
584KB

Download
memory/2676-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2676-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2676-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2676-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2676-70-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2676-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2676-69-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2676-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2676-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2676-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2904-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2904-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2904-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2904-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2904-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2932-35-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/2932-30-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/2932-31-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download