djvu | e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07

Analysis

max time kernel
141s
max time network
133s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 01:23

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General

Target

JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe
Size

837KB
MD5

724456287911a6c6f516edcdb88b5a7d
SHA1

fbad3bbf624554e106e57581bdcfda537b2bd3a4
SHA256

e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07
SHA512

275d72f3881fffab8125c61fa86f71262df38137ca4959b1b401270ab8e7746a064306d3e6db0633bd3e104bd8b7301e3d50ef44752c12ebd2f739120c16121d
SSDEEP

24576:G2aAVs923+hRsOWZslD1WoYzdoqBSrnF0B4PSwFf+B:pJi923+hK9ZKD1WoWdWbWBif

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/2304-2-0x0000000001D80000-0x0000000001E9B000-memory.dmp	family_djvu
behavioral1/memory/2612-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2704-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2704-40-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2704-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2704-56-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2704-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2704-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2704-68-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2704-71-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2704-70-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2704-72-0x0000000000400000-0x0000000000537000-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
2880	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\\b9338524-d69f-498b-84e1-4347f9f6a1d3\\JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe\" --AutoStart"	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.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
5	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2304 set thread context of 2612	2304	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	29
PID 3036 set thread context of 2704	3036	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	32

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_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2612	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe
2612	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe
2704	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe
2704	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 2612	2304	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	29
PID 2304 wrote to memory of 2612	2304	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	29
PID 2304 wrote to memory of 2612	2304	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	29
PID 2304 wrote to memory of 2612	2304	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	29
PID 2304 wrote to memory of 2612	2304	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	29
PID 2304 wrote to memory of 2612	2304	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	29
PID 2304 wrote to memory of 2612	2304	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	29
PID 2304 wrote to memory of 2612	2304	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	29
PID 2304 wrote to memory of 2612	2304	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	29
PID 2304 wrote to memory of 2612	2304	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	29
PID 2304 wrote to memory of 2612	2304	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	29
PID 2612 wrote to memory of 2880	2612	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	30
PID 2612 wrote to memory of 2880	2612	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	30
PID 2612 wrote to memory of 2880	2612	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	30
PID 2612 wrote to memory of 2880	2612	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	30
PID 2612 wrote to memory of 3036	2612	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	31
PID 2612 wrote to memory of 3036	2612	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	31
PID 2612 wrote to memory of 3036	2612	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	31
PID 2612 wrote to memory of 3036	2612	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	31
PID 3036 wrote to memory of 2704	3036	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	32
PID 3036 wrote to memory of 2704	3036	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	32
PID 3036 wrote to memory of 2704	3036	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	32
PID 3036 wrote to memory of 2704	3036	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	32
PID 3036 wrote to memory of 2704	3036	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	32
PID 3036 wrote to memory of 2704	3036	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	32
PID 3036 wrote to memory of 2704	3036	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	32
PID 3036 wrote to memory of 2704	3036	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	32
PID 3036 wrote to memory of 2704	3036	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	32
PID 3036 wrote to memory of 2704	3036	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	32
PID 3036 wrote to memory of 2704	3036	JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2612
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\b9338524-d69f-498b-84e1-4347f9f6a1d3" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2880
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3036
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2704

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
3423236859327a07ede5c45b8827fd5d

SHA1
ee333238ce2042489b2193f8d0063ee305f5d370

SHA256
ebd6344a11e883ee6c2d1b334b0abc35ec26df19d3002fc2b8ee496e0ad141ab

SHA512
9a2ee44fb92c7532f61ba438b9c95215ba0341aa6a2c77de8aeb54a31d5d95b98b8dc556fb95fbe5a292f20c512e368010fa774aa02ff0407fcdfd4ac02fb0a9

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

Filesize
342B

MD5
835e69feee763a3f06254f9959f6f59d

SHA1
cb117d064153a46685fcfe96fb07b2dd8916d2dc

SHA256
72b20146db10340b9730c9d09c583f6cfb3fd7a3f3db0aed28992fa1762a8a1d

SHA512
db9f23c485f69886891c645f71fbb8a6455a69049dc960866e231610351fea0e0f4ab4e98fae7cf828e21bce2ec0362c30d6406ac19d034d22276c635bc03b19

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

Filesize
170B

MD5
fdc9b21132c84d95f92db4b885b8b5df

SHA1
d7ba6586e22e4e6b5538053c48e063eb931ab7ba

SHA256
9bb3b37fd01811407fcbdcf6559850519e7587d7e39f93c5a1136a87bbf1f66c

SHA512
b5ac88fc19a955e44872d5869932ba9b80fd47332b6341dff138480b2fc6c04648fd4b0ffad84e3e7c6eb6d3afde6475637b536f2fbb00b2a5bc72722fbd02f5

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab9AC9.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\b9338524-d69f-498b-84e1-4347f9f6a1d3\JaffaCakes118_e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07.exe

Filesize
837KB

MD5
724456287911a6c6f516edcdb88b5a7d

SHA1
fbad3bbf624554e106e57581bdcfda537b2bd3a4

SHA256
e6ef7ba27cdc8c177640a495b58a718719220204acc63a68f59eafb49a8dcc07

SHA512
275d72f3881fffab8125c61fa86f71262df38137ca4959b1b401270ab8e7746a064306d3e6db0633bd3e104bd8b7301e3d50ef44752c12ebd2f739120c16121d

Download Submit
memory/2304-7-0x0000000000360000-0x00000000003F1000-memory.dmp

Filesize
580KB

Download
memory/2304-2-0x0000000001D80000-0x0000000001E9B000-memory.dmp

Filesize
1.1MB

Download
memory/2304-0-0x0000000000360000-0x00000000003F1000-memory.dmp

Filesize
580KB

Download
memory/2304-1-0x0000000000360000-0x00000000003F1000-memory.dmp

Filesize
580KB

Download
memory/2612-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2704-40-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2704-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2704-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2704-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2704-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2704-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2704-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2704-71-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2704-70-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2704-72-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3036-33-0x0000000000400000-0x00000000004DD000-memory.dmp

Filesize
884KB

Download
memory/3036-37-0x0000000000400000-0x00000000004DD000-memory.dmp

Filesize
884KB

Download
memory/3036-32-0x0000000000330000-0x00000000003C1000-memory.dmp

Filesize
580KB

Download