djvu | e1b4d08ecd1ea054c62630c9bb9b289afbc6d29306a145ba571efe921c24cb8b

Analysis

max time kernel
146s
max time network
125s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-12-2024 06:18

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General

Target

e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe
Size

760KB
MD5

e5140e4645a51e56a877d65054c3315c
SHA1

e0d69b2d8307a323a0971a3d91ab3bd47f394de9
SHA256

e1b4d08ecd1ea054c62630c9bb9b289afbc6d29306a145ba571efe921c24cb8b
SHA512

6a0b3da836373abd4d01f5b83ce6b92f178ac366ce07b11ab2a060f06c74436190caf5e616f919f0c25c234772ba37e862226758940c27906273ae4daf331b79
SSDEEP

12288:W3lIze2M5rGFJdE0WGPtMKWkslXVoOpyXluNsPjRvWcfET9y3h9ZOy:W6MfW6XVoOpyXluNK/ET9y3fQ

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.rigd
offline_id
gigF2ELYocnMQz77LhEpSoXvtYp2junk9HZFtJt1
payload_url
http://znpst.top/dl/build2.exe

http://securebiz.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-2zbBkO06mv 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: 0335gSd743d

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2684-2-0x00000000008F0000-0x0000000000A0B000-memory.dmp	family_djvu
behavioral1/memory/2400-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2400-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2400-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2400-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2560-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2560-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2560-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2560-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2560-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2560-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2560-59-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2560-58-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2560-56-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2560-60-0x0000000000400000-0x0000000000537000-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
2832	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\\bdf89236-0549-442a-b81b-51739dcfcf45\\e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe\" --AutoStart"	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.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
9	api.2ip.ua
4	api.2ip.ua
5	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2684 set thread context of 2400	2684	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	30
PID 2752 set thread context of 2560	2752	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.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	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2400	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe
2400	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe
2560	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe
2560	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2684 wrote to memory of 2400	2684	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	30
PID 2684 wrote to memory of 2400	2684	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	30
PID 2684 wrote to memory of 2400	2684	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	30
PID 2684 wrote to memory of 2400	2684	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	30
PID 2684 wrote to memory of 2400	2684	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	30
PID 2684 wrote to memory of 2400	2684	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	30
PID 2684 wrote to memory of 2400	2684	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	30
PID 2684 wrote to memory of 2400	2684	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	30
PID 2684 wrote to memory of 2400	2684	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	30
PID 2684 wrote to memory of 2400	2684	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	30
PID 2684 wrote to memory of 2400	2684	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	30
PID 2400 wrote to memory of 2832	2400	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	32
PID 2400 wrote to memory of 2832	2400	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	32
PID 2400 wrote to memory of 2832	2400	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	32
PID 2400 wrote to memory of 2832	2400	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	32
PID 2400 wrote to memory of 2752	2400	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	33
PID 2400 wrote to memory of 2752	2400	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	33
PID 2400 wrote to memory of 2752	2400	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	33
PID 2400 wrote to memory of 2752	2400	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	33
PID 2752 wrote to memory of 2560	2752	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	35
PID 2752 wrote to memory of 2560	2752	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	35
PID 2752 wrote to memory of 2560	2752	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	35
PID 2752 wrote to memory of 2560	2752	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	35
PID 2752 wrote to memory of 2560	2752	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	35
PID 2752 wrote to memory of 2560	2752	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	35
PID 2752 wrote to memory of 2560	2752	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	35
PID 2752 wrote to memory of 2560	2752	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	35
PID 2752 wrote to memory of 2560	2752	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	35
PID 2752 wrote to memory of 2560	2752	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	35
PID 2752 wrote to memory of 2560	2752	e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe	35

C:\Users\Admin\AppData\Local\Temp\e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Users\Admin\AppData\Local\Temp\e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2400
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\bdf89236-0549-442a-b81b-51739dcfcf45" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2832
- - C:\Users\Admin\AppData\Local\Temp\e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2752
  - - C:\Users\Admin\AppData\Local\Temp\e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2560

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
a4748f2800621ce5b174fb1d20c48294

SHA1
140eef17e45dcdda9ad4f0ee263d283a7fa10132

SHA256
09db05b69bc467a2e509393d32fde26dd38eb575e3015f064a490db34a46dbb8

SHA512
ef0285f29d242fefce413eb7b97eb74682f869725a5566e39fa1431f341639ebb52553b6abab75e75005f9cf47fba44338d628215c86ee1929529586df1f55ab

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

Filesize
170B

MD5
6512d56c8d376e4fbca3dce064ef8c5e

SHA1
cf9dae9318b94b6391652ebf8ebbb6dbccf18efd

SHA256
b4a84aa94e0dc54187e12528f21e27e2fc3efc079053d833ef0a02e92e1f68ae

SHA512
1c8c8c0a47662cc9f6ac832993e903c23ab29b99f33e4c5f1b5892592bdf156744a5a4eee4d8c217b5d73b07d170a24673fbb683dcb9778969c92980c35c22d7

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabD3D3.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\bdf89236-0549-442a-b81b-51739dcfcf45\e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe

Filesize
760KB

MD5
e5140e4645a51e56a877d65054c3315c

SHA1
e0d69b2d8307a323a0971a3d91ab3bd47f394de9

SHA256
e1b4d08ecd1ea054c62630c9bb9b289afbc6d29306a145ba571efe921c24cb8b

SHA512
6a0b3da836373abd4d01f5b83ce6b92f178ac366ce07b11ab2a060f06c74436190caf5e616f919f0c25c234772ba37e862226758940c27906273ae4daf331b79

Download Submit
memory/2400-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2400-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2400-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2400-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2400-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2560-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2560-58-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2560-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2560-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2560-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2560-59-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2560-60-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2560-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2560-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2560-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2684-2-0x00000000008F0000-0x0000000000A0B000-memory.dmp

Filesize
1.1MB

Download
memory/2684-1-0x00000000002C0000-0x0000000000352000-memory.dmp

Filesize
584KB

Download
memory/2684-6-0x00000000002C0000-0x0000000000352000-memory.dmp

Filesize
584KB

Download
memory/2684-0-0x00000000002C0000-0x0000000000352000-memory.dmp

Filesize
584KB

Download
memory/2752-35-0x0000000000400000-0x00000000008EE000-memory.dmp

Filesize
4.9MB

Download
memory/2752-29-0x00000000008F0000-0x0000000000982000-memory.dmp

Filesize
584KB

Download