djvu | 080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c

General

Target

080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
Size

826KB
MD5

5930dd3059ccff6922dbb4c2ecaf6fd2
SHA1

85607e70a40e89482c9834d980a0b597b3a57caf
SHA256

080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c
SHA512

06984211d570702c7e3f35ce3145213fcaeefbb03b2ce39eb87c3742ea458059886def4c4b62ec828ee752a4a50db66ef92645fca7731db5d781019135b6d3b6

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.hgsh
offline_id
gYuqQ5GsAaJom08TivUVhlPzZDKd916x4NcXrWt1
payload_url
http://kotob.top/dl/build2.exe

http://tzgl.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-m8LBBi8x8F 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: 0358Sigrj

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3720-119-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-120-0x0000000002160000-0x000000000227B000-memory.dmp	family_djvu
behavioral1/memory/3720-121-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/3720-124-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3936-128-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/3936-129-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

416 icacls.exe

pid	process
416	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe

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\\4b03b667-5e83-4cc3-8bb7-ef9257adc805\\080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe\" --AutoStart"	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.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.

Processes:

flow ioc

16 api.2ip.ua
17 api.2ip.ua
26 api.2ip.ua

flow	ioc
16	api.2ip.ua
17	api.2ip.ua
26	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe

description	pid	process	target process
PID 2696 set thread context of 3720	2696	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 652 set thread context of 3936	652	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe

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

Processes:

080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe

pid	process
3720	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
3720	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
3936	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
3936	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe

C:\Users\Admin\AppData\Local\Temp\080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
"C:\Users\Admin\AppData\Local\Temp\080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2696
- C:\Users\Admin\AppData\Local\Temp\080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
  "C:\Users\Admin\AppData\Local\Temp\080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe"
  2⤵
  - Adds Run key to start application
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3720
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\4b03b667-5e83-4cc3-8bb7-ef9257adc805" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:416
- - C:\Users\Admin\AppData\Local\Temp\080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
    "C:\Users\Admin\AppData\Local\Temp\080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:652
  - - C:\Users\Admin\AppData\Local\Temp\080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
      "C:\Users\Admin\AppData\Local\Temp\080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:3936

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

MD5
1c63500df0b57e29edd1a5867d9f0e9b

SHA1
0475a0611ac4d171e90b46303b96317fc186b15d

SHA256
c8f7c1bd12b80996707a806866379d91dc3008d5d2b0eeeb6d97d418aeeb7914

SHA512
29b914ffe63496d98e8ffb76afde49702888743c88bd0fc6aabdf3e8855e3a5389d933a29ccb4564e8d3198c159a1debfb56d6f39f428689f8eb4d497b341bde

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

MD5
65052acb8dc97b38007797064162c9a1

SHA1
862cf5f74d74b85103b088650a230ed0c6d32df3

SHA256
ef406913c83356f132bbc250646c24befee2acfdabbc9debcbca68c1da01a30f

SHA512
976f4bd21af190164d04534f4e534d44e14fd5d3c6798421f84ead4e0a53f25d386d4b59bfe0c7c5865af4f22593d975d6b48292b024a4b6ca0d65ff6ee735bd

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

MD5
f450d4c352d1fcb61d7e71e15f5e4bf1

SHA1
77f9a8c17ecfb0b0ee1c91b7c5cf17ef8981e048

SHA256
381405c3fb461292fc388ff6c589be0e9643292203869f8c3b76afdca965b655

SHA512
8fe3ffb2571f6223daa67ee7b3ec1a2415061cf73b46887482b485d65e01bb9034efed24e8a21ff435cd7ac79f376d4fcaf7a8f5f951bc1466a91b1a5d638280

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

MD5
8bb0d532c2ee59003abcce6033f61233

SHA1
3f4141c89856ad4f912807c8b9c417666ae69c43

SHA256
3045438aacb8b151fcb94dc212ab1b7af3b3e1911006f322e5fe0a55f7de72e7

SHA512
9b6e363435918adccdedcecc73547caede17d5d6f59b95ba6b7c89b3075796f74db54b06248625922febaf1212c2dcab6fe43ebf1c9c98c9fc22efc1ec09ea36

Download Submit
C:\Users\Admin\AppData\Local\4b03b667-5e83-4cc3-8bb7-ef9257adc805\080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe

MD5
5930dd3059ccff6922dbb4c2ecaf6fd2

SHA1
85607e70a40e89482c9834d980a0b597b3a57caf

SHA256
080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c

SHA512
06984211d570702c7e3f35ce3145213fcaeefbb03b2ce39eb87c3742ea458059886def4c4b62ec828ee752a4a50db66ef92645fca7731db5d781019135b6d3b6

Download Submit
memory/416-122-0x0000000000000000-mapping.dmp

Download
memory/652-125-0x0000000000000000-mapping.dmp

Download
memory/652-126-0x000000000213B000-0x00000000021CC000-memory.dmp

Filesize
580KB

Download
memory/2696-120-0x0000000002160000-0x000000000227B000-memory.dmp

Filesize
1.1MB

Download
memory/2696-118-0x000000000072D000-0x00000000007BE000-memory.dmp

Filesize
580KB

Download
memory/3720-124-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3720-121-0x0000000000424141-mapping.dmp

Download
memory/3720-119-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3936-129-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3936-128-0x0000000000424141-mapping.dmp

Download

description	pid	process	target process
PID 2696 wrote to memory of 3720	2696	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 2696 wrote to memory of 3720	2696	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 2696 wrote to memory of 3720	2696	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 2696 wrote to memory of 3720	2696	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 2696 wrote to memory of 3720	2696	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 2696 wrote to memory of 3720	2696	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 2696 wrote to memory of 3720	2696	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 2696 wrote to memory of 3720	2696	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 2696 wrote to memory of 3720	2696	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 2696 wrote to memory of 3720	2696	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 3720 wrote to memory of 416	3720	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	icacls.exe
PID 3720 wrote to memory of 416	3720	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	icacls.exe
PID 3720 wrote to memory of 416	3720	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	icacls.exe
PID 3720 wrote to memory of 652	3720	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 3720 wrote to memory of 652	3720	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 3720 wrote to memory of 652	3720	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 652 wrote to memory of 3936	652	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 652 wrote to memory of 3936	652	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 652 wrote to memory of 3936	652	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 652 wrote to memory of 3936	652	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 652 wrote to memory of 3936	652	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 652 wrote to memory of 3936	652	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 652 wrote to memory of 3936	652	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 652 wrote to memory of 3936	652	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 652 wrote to memory of 3936	652	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe
PID 652 wrote to memory of 3936	652	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe	080257c59eec466f5314a42462f8a2700c6a22f9b170117f83b146c16ef93a5c.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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