djvu | 3f23068954a420723036b05e95eb7f3d0cfcae0c4e71ce3f09dc99203c074083

General

Target

JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe
Size

815KB
MD5

1fee8e2da2d002444a602391a4dc1b7b
SHA1

c141c05103bfd6464ae59a0f5b194b4d8eba8598
SHA256

3f23068954a420723036b05e95eb7f3d0cfcae0c4e71ce3f09dc99203c074083
SHA512

f48d534843b110b69bf0a45cc9b1f7fb6c037fe2eca46f838344e0a00b033f53e0783bf881f338bf15e25ea431097ae1c1a67d0831ef338b9d8743089b2b0fdb
SSDEEP

12288:Whb8E/vK17prPrtM9zDJWP2Rl7+rxFUo26JbkoOF+1zV7iDOeJCyu8+AztGGbJNH:c4my1L592gxFU2kGhcCX9E5Il

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.irjg
offline_id
xcdIdDNFh62dy3iJsba1COhcfDENsbjPHQQ2Eht1
payload_url
http://znpst.top/dl/build2.exe

http://rlrz.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-xl2bbDnZSN 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: 0338gSd743d

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 19 IoCs

resource	yara_rule
behavioral2/memory/4988-2-0x0000000003530000-0x000000000364B000-memory.dmp	family_djvu
behavioral2/memory/3440-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3440-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3440-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3440-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3440-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2640-20-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2640-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2640-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2640-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2640-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2212-31-0x0000000000400000-0x000000000173E000-memory.dmp	family_djvu
behavioral2/memory/2640-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2640-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2640-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2640-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2640-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2640-40-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2640-41-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Djvu family
djvu

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1692	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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\d1ada2b5-8dba-4691-acad-ab5b63130fd6\\JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe\" --AutoStart"	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.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
10	api.2ip.ua
12	api.2ip.ua
20	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4988 set thread context of 3440	4988	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	82
PID 2212 set thread context of 2640	2212	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	86

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_1fee8e2da2d002444a602391a4dc1b7b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3440	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe
3440	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe
2640	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe
2640	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4988 wrote to memory of 3440	4988	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	82
PID 4988 wrote to memory of 3440	4988	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	82
PID 4988 wrote to memory of 3440	4988	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	82
PID 4988 wrote to memory of 3440	4988	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	82
PID 4988 wrote to memory of 3440	4988	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	82
PID 4988 wrote to memory of 3440	4988	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	82
PID 4988 wrote to memory of 3440	4988	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	82
PID 4988 wrote to memory of 3440	4988	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	82
PID 4988 wrote to memory of 3440	4988	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	82
PID 4988 wrote to memory of 3440	4988	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	82
PID 3440 wrote to memory of 1692	3440	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	83
PID 3440 wrote to memory of 1692	3440	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	83
PID 3440 wrote to memory of 1692	3440	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	83
PID 3440 wrote to memory of 2212	3440	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	84
PID 3440 wrote to memory of 2212	3440	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	84
PID 3440 wrote to memory of 2212	3440	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	84
PID 2212 wrote to memory of 2640	2212	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	86
PID 2212 wrote to memory of 2640	2212	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	86
PID 2212 wrote to memory of 2640	2212	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	86
PID 2212 wrote to memory of 2640	2212	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	86
PID 2212 wrote to memory of 2640	2212	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	86
PID 2212 wrote to memory of 2640	2212	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	86
PID 2212 wrote to memory of 2640	2212	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	86
PID 2212 wrote to memory of 2640	2212	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	86
PID 2212 wrote to memory of 2640	2212	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	86
PID 2212 wrote to memory of 2640	2212	JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4988
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3440
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\d1ada2b5-8dba-4691-acad-ab5b63130fd6" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:1692
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2212
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

File and Directory Permissions Modification

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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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
6e9252b13f8fb2c9a868e5aea68d0442

SHA1
7bf37456335e7c28dbbfa85b84c722a9d85c6735

SHA256
e459e37d20b48c39ef811c0eeb8a0d34c8ddd3dab18ef0b4cbaee2b9c2ce4781

SHA512
5d5be6afb53631dcbd1f06011e2d96c0e063e16b6ce21cd880c315eaa38c39249754827c061e00b5fc3dfc82f3064aee245cdf5b28c1e551d502a3c96c533517

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

Filesize
170B

MD5
95a2260d71e0e7d9d7acc1757520b1de

SHA1
661f9d012b3b9c301f3822ee2eabbe45401f4e7d

SHA256
b3af8da5d64b96607052d1815a96058a94da82bddcd9f798f5fd6c1129742e46

SHA512
05362986e325bb4e109bbb04cdc92c2852ae097b05b2e4db84961c0d3a3035a39c55ba1fdd3dc05da3817287b543989ce935e80ead8b9121cdb96a99b4774bd4

Download Submit
C:\Users\Admin\AppData\Local\d1ada2b5-8dba-4691-acad-ab5b63130fd6\JaffaCakes118_1fee8e2da2d002444a602391a4dc1b7b.exe

Filesize
815KB

MD5
1fee8e2da2d002444a602391a4dc1b7b

SHA1
c141c05103bfd6464ae59a0f5b194b4d8eba8598

SHA256
3f23068954a420723036b05e95eb7f3d0cfcae0c4e71ce3f09dc99203c074083

SHA512
f48d534843b110b69bf0a45cc9b1f7fb6c037fe2eca46f838344e0a00b033f53e0783bf881f338bf15e25ea431097ae1c1a67d0831ef338b9d8743089b2b0fdb

Download Submit
memory/2212-23-0x0000000000400000-0x000000000173E000-memory.dmp

Filesize
19.2MB

Download
memory/2212-31-0x0000000000400000-0x000000000173E000-memory.dmp

Filesize
19.2MB

Download
memory/2640-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2640-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2640-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2640-41-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2640-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2640-20-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2640-40-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2640-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2640-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2640-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2640-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2640-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3440-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3440-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3440-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3440-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3440-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4988-1-0x0000000003480000-0x000000000351A000-memory.dmp

Filesize
616KB

Download
memory/4988-2-0x0000000003530000-0x000000000364B000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads