djvu | dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698

Resubmissions

25-12-2024 08:46

241225-kpbf1a1phr 10

25-12-2024 06:12

241225-gx7bvsznej 10

Analysis

max time kernel
147s
max time network
135s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 06:12

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General

Target

JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe
Size

727KB
MD5

066ad2d57886e7b26986539ae16ddc89
SHA1

0555f68a0c96a2f8f2dd7447fad0641e4b122c06
SHA256

dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698
SHA512

5b05a12fe8f9351d838b2735c50e6ff082897129ff8ea89a50f836e6f42b4507babfb84a434fbad851e4fe9b720f714ead8c51463e19eb9af29323a863d8c23b
SSDEEP

12288:Wb7/78mo1AzTv1Xcv+WjVxVcdP/tBB9o2DR9oxmpEGwbX:WbftM2WZLcdPHoYR9zEG8X

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.dmay
offline_id
Xe4NOamOTHZrARTiL9dfVzAylFrEWLGGbr2dngt1
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-FT7BNVbXC9 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: 0458JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2904-2-0x0000000001D90000-0x0000000001EAB000-memory.dmp	family_djvu
behavioral1/memory/2260-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2260-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2260-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2260-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-63-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-67-0x0000000000400000-0x0000000000537000-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
2084	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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\f73a6136-c4c2-440b-9c6e-1feb3e97b383\\JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe\" --AutoStart"	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.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 2904 set thread context of 2260	2904	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	28
PID 2044 set thread context of 2612	2044	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.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_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2260	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe
2260	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe
2612	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe
2612	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 2260	2904	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	28
PID 2904 wrote to memory of 2260	2904	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	28
PID 2904 wrote to memory of 2260	2904	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	28
PID 2904 wrote to memory of 2260	2904	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	28
PID 2904 wrote to memory of 2260	2904	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	28
PID 2904 wrote to memory of 2260	2904	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	28
PID 2904 wrote to memory of 2260	2904	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	28
PID 2904 wrote to memory of 2260	2904	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	28
PID 2904 wrote to memory of 2260	2904	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	28
PID 2904 wrote to memory of 2260	2904	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	28
PID 2904 wrote to memory of 2260	2904	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	28
PID 2260 wrote to memory of 2084	2260	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	30
PID 2260 wrote to memory of 2084	2260	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	30
PID 2260 wrote to memory of 2084	2260	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	30
PID 2260 wrote to memory of 2084	2260	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	30
PID 2260 wrote to memory of 2044	2260	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	31
PID 2260 wrote to memory of 2044	2260	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	31
PID 2260 wrote to memory of 2044	2260	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	31
PID 2260 wrote to memory of 2044	2260	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	31
PID 2044 wrote to memory of 2612	2044	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	32
PID 2044 wrote to memory of 2612	2044	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	32
PID 2044 wrote to memory of 2612	2044	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	32
PID 2044 wrote to memory of 2612	2044	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	32
PID 2044 wrote to memory of 2612	2044	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	32
PID 2044 wrote to memory of 2612	2044	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	32
PID 2044 wrote to memory of 2612	2044	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	32
PID 2044 wrote to memory of 2612	2044	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	32
PID 2044 wrote to memory of 2612	2044	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	32
PID 2044 wrote to memory of 2612	2044	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	32
PID 2044 wrote to memory of 2612	2044	JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2904
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2260
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\f73a6136-c4c2-440b-9c6e-1feb3e97b383" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2084
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2044
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2612

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
0790b8e760d6c4fe1b41e73137dba6df

SHA1
b37cef7890eb8d9c97b5822a126745304bfc94d6

SHA256
f2e94de990c095d3093cb7476e2deb6b5c993ce4ef94c1a26ad245a08faed1c0

SHA512
0931a14b5f1a3a6da7eae4e3a39fbe0176970b740a0f150dd144cc654f1b0c108989548a35cdccff8f37be10af58f033c35f74ba3f3e7669615f9b23da18de90

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

Filesize
170B

MD5
6e09245349cc86784f0f9516c8d928be

SHA1
425de7ba8d2abf7168be12c2562fdf3520210228

SHA256
3e9e79bd1fd9ca3b541e1160d4160bb405185b08941bfe013c284e2dd0511e38

SHA512
cae1ca4379605a1c3fb5970a08ff2e815bc490c5da34335cb67fbace62dde6ff487d59cd6104a61850279686c8e0796e0ee8370ed6a19991d04a9e685dbebbcf

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabA1BB.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\f73a6136-c4c2-440b-9c6e-1feb3e97b383\JaffaCakes118_dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698.exe

Filesize
727KB

MD5
066ad2d57886e7b26986539ae16ddc89

SHA1
0555f68a0c96a2f8f2dd7447fad0641e4b122c06

SHA256
dde18ec405c73a1507db4dd61a6d6be19b1cdf497b2a37abdc476335a29b7698

SHA512
5b05a12fe8f9351d838b2735c50e6ff082897129ff8ea89a50f836e6f42b4507babfb84a434fbad851e4fe9b720f714ead8c51463e19eb9af29323a863d8c23b

Download Submit
memory/2044-28-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download
memory/2044-33-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2044-29-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2260-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2260-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2260-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2260-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2260-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-63-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-67-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2904-0-0x00000000002E0000-0x0000000000371000-memory.dmp

Filesize
580KB

Download
memory/2904-1-0x00000000002E0000-0x0000000000371000-memory.dmp

Filesize
580KB

Download
memory/2904-2-0x0000000001D90000-0x0000000001EAB000-memory.dmp

Filesize
1.1MB

Download
memory/2904-6-0x00000000002E0000-0x0000000000371000-memory.dmp

Filesize
580KB

Download