djvu | 2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db

Analysis

max time kernel
149s
max time network
143s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
26/12/2024, 15:44

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General

Target

JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe
Size

726KB
MD5

452a191af6aa4aa8e4c784c287d077e3
SHA1

083822c7a4ce790647d5099ac5978bbc72f114a0
SHA256

2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db
SHA512

e6dde03e90c325dce5b9beabb36d882cc4aa0e2caa125e6fa5b6c6663b786ad0e2895b0be0be3526b10e42805189b592e3f3521d3116427a1f92b4413c55a492
SSDEEP

12288:mavsYeCVyMp6bCz9TWUfFBYH3nL8Ylskovgzy+uQIknNOkbdvv3BaHP:ma0YeCV0+FfF6H3nLvygzy33GX3A

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 16 IoCs

resource	yara_rule
behavioral1/memory/2992-2-0x0000000001DE0000-0x0000000001EFB000-memory.dmp	family_djvu
behavioral1/memory/684-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/684-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/684-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/684-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2932-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2932-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2932-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2932-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2932-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2932-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2932-63-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2932-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2932-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2932-67-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2932-68-0x0000000000400000-0x0000000000537000-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
2744	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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\1a029c96-c4c8-40a3-a8a4-83bd0e9e27d5\\JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe\" --AutoStart"	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.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 2992 set thread context of 684	2992	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	31
PID 2728 set thread context of 2932	2728	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.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	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
684	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe
684	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe
2932	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe
2932	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2992 wrote to memory of 684	2992	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	31
PID 2992 wrote to memory of 684	2992	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	31
PID 2992 wrote to memory of 684	2992	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	31
PID 2992 wrote to memory of 684	2992	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	31
PID 2992 wrote to memory of 684	2992	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	31
PID 2992 wrote to memory of 684	2992	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	31
PID 2992 wrote to memory of 684	2992	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	31
PID 2992 wrote to memory of 684	2992	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	31
PID 2992 wrote to memory of 684	2992	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	31
PID 2992 wrote to memory of 684	2992	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	31
PID 2992 wrote to memory of 684	2992	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	31
PID 684 wrote to memory of 2744	684	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	33
PID 684 wrote to memory of 2744	684	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	33
PID 684 wrote to memory of 2744	684	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	33
PID 684 wrote to memory of 2744	684	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	33
PID 684 wrote to memory of 2728	684	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	34
PID 684 wrote to memory of 2728	684	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	34
PID 684 wrote to memory of 2728	684	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	34
PID 684 wrote to memory of 2728	684	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	34
PID 2728 wrote to memory of 2932	2728	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	35
PID 2728 wrote to memory of 2932	2728	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	35
PID 2728 wrote to memory of 2932	2728	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	35
PID 2728 wrote to memory of 2932	2728	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	35
PID 2728 wrote to memory of 2932	2728	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	35
PID 2728 wrote to memory of 2932	2728	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	35
PID 2728 wrote to memory of 2932	2728	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	35
PID 2728 wrote to memory of 2932	2728	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	35
PID 2728 wrote to memory of 2932	2728	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	35
PID 2728 wrote to memory of 2932	2728	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	35
PID 2728 wrote to memory of 2932	2728	JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe	35

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2992
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:684
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\1a029c96-c4c8-40a3-a8a4-83bd0e9e27d5" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2744
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2728
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2932

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
92862035ed5a1e5d690a9d95926b019d

SHA1
4631083f1dd3d513fbc34109a51424fb020f3c95

SHA256
65d7816c49f9ea6c8805b236ba87a41865c0f4a486112450469cf1452727d923

SHA512
e99f538fae26e9ee03d7ea23eeef1f0d546ab08ae8cb42e322cb8aef5fcb0a05d68f7181e6ac4b4bce21df40e8e5beb175ec881e748909d32f9f8858303e964a

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

Filesize
170B

MD5
d1fc1ce48558e7446d4413babc3d0578

SHA1
f4cb8b2391ac6cc08eaec382b1fee03ad7a55a9b

SHA256
3d3c4a32df89468c877c3cbd7c96348248d8153dd00326b682c46dd7afdbc47e

SHA512
c4fa5045fe6e773c0f4d85dc318a8a3099c00afe65115b8de13103c398c50c25f4f796050e10f7096f4779520e8269b7390555fafe3468b92b2aa46ecd51148d

Download Submit
C:\Users\Admin\AppData\Local\1a029c96-c4c8-40a3-a8a4-83bd0e9e27d5\JaffaCakes118_2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db.exe

Filesize
726KB

MD5
452a191af6aa4aa8e4c784c287d077e3

SHA1
083822c7a4ce790647d5099ac5978bbc72f114a0

SHA256
2334ac2a63db96355a93e9daa7ee3e64d09f979e3338b32e0576df8a95a696db

SHA512
e6dde03e90c325dce5b9beabb36d882cc4aa0e2caa125e6fa5b6c6663b786ad0e2895b0be0be3526b10e42805189b592e3f3521d3116427a1f92b4413c55a492

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab14F7.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/684-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/684-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/684-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/684-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/684-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2728-28-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/2728-29-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2728-34-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2932-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2932-63-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2932-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2932-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2932-67-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2932-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2932-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2932-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2932-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2932-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2932-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2992-0-0x00000000004C0000-0x0000000000552000-memory.dmp

Filesize
584KB

Download
memory/2992-1-0x00000000004C0000-0x0000000000552000-memory.dmp

Filesize
584KB

Download
memory/2992-2-0x0000000001DE0000-0x0000000001EFB000-memory.dmp

Filesize
1.1MB

Download
memory/2992-7-0x00000000004C0000-0x0000000000552000-memory.dmp

Filesize
584KB

Download