djvu | f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6

General

Target

f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe
Size

855KB
MD5

c6901bf62961a530ceec0a59bd610985
SHA1

891344934957544be0130013dd452c9168bbb5bc
SHA256

f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6
SHA512

ec91e6588cbf81628f198a2abd9179c1c901ca00418c5d063b5e114d4cb1b876037d3476a866553b4003b6aa1ea89113f4825afa2ad6d84ddde5df73b772640f

Score

10^/10

djvu discovery persistence ransomware suricata

Malware Config

Extracted

Family

djvu

C2

http://pqkl.org/lancer/get.php

Attributes

extension
.qmak
offline_id
mGOVYjwKN5zpBZyRsr2Nqza9xnxDzO1NGhAl47t1
payload_url
http://kotob.top/dl/build2.exe

http://pqkl.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-W7mpKFSSv2 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: 0348gSd743d

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 6 IoCs

resource	yara_rule
behavioral1/memory/3728-119-0x0000000004890000-0x00000000049AB000-memory.dmp	family_djvu
behavioral1/memory/4340-121-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/4340-120-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4340-124-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3196-128-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/3196-133-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4496	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\270e53a6-02a6-4059-b517-8be60bbb42f8\\f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe\" --AutoStart"	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.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
15	api.2ip.ua
16	api.2ip.ua
22	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3728 set thread context of 4340	3728	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	69
PID 4476 set thread context of 3196	4476	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	73

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4340	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe
4340	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe
3196	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe
3196	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3728 wrote to memory of 4340	3728	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	69
PID 3728 wrote to memory of 4340	3728	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	69
PID 3728 wrote to memory of 4340	3728	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	69
PID 3728 wrote to memory of 4340	3728	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	69
PID 3728 wrote to memory of 4340	3728	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	69
PID 3728 wrote to memory of 4340	3728	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	69
PID 3728 wrote to memory of 4340	3728	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	69
PID 3728 wrote to memory of 4340	3728	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	69
PID 3728 wrote to memory of 4340	3728	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	69
PID 3728 wrote to memory of 4340	3728	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	69
PID 4340 wrote to memory of 4496	4340	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	70
PID 4340 wrote to memory of 4496	4340	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	70
PID 4340 wrote to memory of 4496	4340	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	70
PID 4340 wrote to memory of 4476	4340	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	71
PID 4340 wrote to memory of 4476	4340	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	71
PID 4340 wrote to memory of 4476	4340	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	71
PID 4476 wrote to memory of 3196	4476	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	73
PID 4476 wrote to memory of 3196	4476	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	73
PID 4476 wrote to memory of 3196	4476	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	73
PID 4476 wrote to memory of 3196	4476	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	73
PID 4476 wrote to memory of 3196	4476	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	73
PID 4476 wrote to memory of 3196	4476	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	73
PID 4476 wrote to memory of 3196	4476	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	73
PID 4476 wrote to memory of 3196	4476	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	73
PID 4476 wrote to memory of 3196	4476	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	73
PID 4476 wrote to memory of 3196	4476	f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe	73

C:\Users\Admin\AppData\Local\Temp\f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe
"C:\Users\Admin\AppData\Local\Temp\f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3728
- C:\Users\Admin\AppData\Local\Temp\f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe
  "C:\Users\Admin\AppData\Local\Temp\f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe"
  2⤵
  - Adds Run key to start application
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4340
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\270e53a6-02a6-4059-b517-8be60bbb42f8" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:4496
- - C:\Users\Admin\AppData\Local\Temp\f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe
    "C:\Users\Admin\AppData\Local\Temp\f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4476
  - - C:\Users\Admin\AppData\Local\Temp\f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe
      "C:\Users\Admin\AppData\Local\Temp\f602931720643f83453d871cfcbbb7e0b04c7886a893fc83dc910bd479f36df6.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:3196

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

1

T1222

Install Root Certificate

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3196-133-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3728-119-0x0000000004890000-0x00000000049AB000-memory.dmp

Filesize
1.1MB

Download
memory/3728-118-0x00000000047F9000-0x000000000488B000-memory.dmp

Filesize
584KB

Download
memory/4340-120-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4340-124-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4476-126-0x000000000479C000-0x000000000482E000-memory.dmp

Filesize
584KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads