djvu | 30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c

Analysis

max time kernel
145s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30/12/2024, 22:48

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General

Target

JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe
Size

823KB
MD5

b1dc0821d7a3beb1ab6275b0fddf2ea7
SHA1

f2e20326079083b3148a45fefee85128f6df1472
SHA256

30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c
SHA512

39d26d805e77dba631e5fbd62c346c3e401f3826d2c89c65c4503f8be6fe8148414244d558a69823af8ca8e6ce357043abd0592dd7a29b8da9ed02cac0fc9e7f
SSDEEP

12288:LG6IxduDAtyEwzC+Ij0JNWR12A0qqcR8a/Xj/dqwpCve5exgyI25To11PfCBo:LG6I1kzcoJNWjn5D5q7e5JC5ToPPKB

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.nuhb
offline_id
PfLhykvDxmCghCq8peuxBtQ3c0QBuANi8WUkuet1
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-c565B1ILoZ 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: 0453Jbdio

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2708-7-0x0000000001CD0000-0x0000000001DEB000-memory.dmp	family_djvu
behavioral1/memory/2848-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2848-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2848-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2848-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3048-40-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3048-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3048-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3048-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3048-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3048-63-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3048-68-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3048-69-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3048-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3048-70-0x0000000000400000-0x0000000000537000-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
2672	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\\94f4fc4c-4816-4562-b055-8a4bd424046a\\JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe\" --AutoStart"	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.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 2708 set thread context of 2848	2708	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	31
PID 2556 set thread context of 3048	2556	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.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	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2848	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe
2848	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe
3048	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe
3048	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 2848	2708	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	31
PID 2708 wrote to memory of 2848	2708	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	31
PID 2708 wrote to memory of 2848	2708	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	31
PID 2708 wrote to memory of 2848	2708	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	31
PID 2708 wrote to memory of 2848	2708	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	31
PID 2708 wrote to memory of 2848	2708	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	31
PID 2708 wrote to memory of 2848	2708	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	31
PID 2708 wrote to memory of 2848	2708	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	31
PID 2708 wrote to memory of 2848	2708	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	31
PID 2708 wrote to memory of 2848	2708	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	31
PID 2708 wrote to memory of 2848	2708	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	31
PID 2848 wrote to memory of 2672	2848	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	32
PID 2848 wrote to memory of 2672	2848	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	32
PID 2848 wrote to memory of 2672	2848	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	32
PID 2848 wrote to memory of 2672	2848	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	32
PID 2848 wrote to memory of 2556	2848	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	33
PID 2848 wrote to memory of 2556	2848	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	33
PID 2848 wrote to memory of 2556	2848	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	33
PID 2848 wrote to memory of 2556	2848	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	33
PID 2556 wrote to memory of 3048	2556	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	34
PID 2556 wrote to memory of 3048	2556	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	34
PID 2556 wrote to memory of 3048	2556	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	34
PID 2556 wrote to memory of 3048	2556	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	34
PID 2556 wrote to memory of 3048	2556	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	34
PID 2556 wrote to memory of 3048	2556	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	34
PID 2556 wrote to memory of 3048	2556	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	34
PID 2556 wrote to memory of 3048	2556	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	34
PID 2556 wrote to memory of 3048	2556	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	34
PID 2556 wrote to memory of 3048	2556	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	34
PID 2556 wrote to memory of 3048	2556	JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe	34

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2708
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2848
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\94f4fc4c-4816-4562-b055-8a4bd424046a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2672
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2556
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:3048

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
c8a977417620c29d6874efe924b1e170

SHA1
c84d2aa07b1565cdf7776221c73a3f8af81dbbaa

SHA256
7f7dd5a6d31f4eaa0dd54f4087c2a23d77f46d45704b93d59d358c45525692e9

SHA512
644d2951af459a76a90593cfb88d3dab3e7a504a4c5f948e9f95432d5367ecfe51de064a45f55f430d477d13ad9377dc605deb633024783242f9bc01e5a995ff

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

Filesize
342B

MD5
c695bb2c35d2b104e8a6b44ae9616b0b

SHA1
a80266057fe6640657dd8c4360cd83b73043cb2a

SHA256
f5d6cef87fd4c12a47808779fb0763dec80581366271b324bdce4d083c22f262

SHA512
61cb3c0a627a3d61b229fc195e8e685aa8a572c10141842d15809a0919b280a0a8a7512b8644567303747c8600d71c3f762cd93ffb9f4078ed262b16741480be

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

Filesize
170B

MD5
0100c42f116d76684e2675ee915a702b

SHA1
28c77b8025a87c9eb853c485fabae4466fe38ff2

SHA256
701883ccc00c410f85664c06200bd4a8e6db6841634483352a401420a35f3537

SHA512
ef326cb2e66a4eb90e57e5b06d41ea41b3336e41efa2174334de9f360d62aa659c3516240422386a3965a476ce1756847105719b3604b9522a7fc5dfbd1c1265

Download Submit
C:\Users\Admin\AppData\Local\94f4fc4c-4816-4562-b055-8a4bd424046a\JaffaCakes118_30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c.exe

Filesize
823KB

MD5
b1dc0821d7a3beb1ab6275b0fddf2ea7

SHA1
f2e20326079083b3148a45fefee85128f6df1472

SHA256
30a3db8a5b8a6dd193bc6e14f130c297cc82cf3fcc100a269f991ccb307a6b3c

SHA512
39d26d805e77dba631e5fbd62c346c3e401f3826d2c89c65c4503f8be6fe8148414244d558a69823af8ca8e6ce357043abd0592dd7a29b8da9ed02cac0fc9e7f

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabF92E.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2556-38-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/2556-32-0x00000000002C0000-0x0000000000351000-memory.dmp

Filesize
580KB

Download
memory/2556-33-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/2708-0-0x00000000004E0000-0x0000000000571000-memory.dmp

Filesize
580KB

Download
memory/2708-7-0x0000000001CD0000-0x0000000001DEB000-memory.dmp

Filesize
1.1MB

Download
memory/2708-6-0x00000000004E0000-0x0000000000571000-memory.dmp

Filesize
580KB

Download
memory/2708-1-0x00000000004E0000-0x0000000000571000-memory.dmp

Filesize
580KB

Download
memory/2848-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2848-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2848-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2848-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2848-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3048-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3048-40-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3048-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3048-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3048-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3048-63-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3048-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3048-69-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/3048-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/3048-70-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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