djvu | 22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff

General

Target

22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
Size

832KB
MD5

c8fa36b648b66fc678e2d0456a2ed66a
SHA1

4681398fa0a09c5bf25ba3e71971d148c20cc369
SHA256

22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff
SHA512

06697a9d26d23bcc2851d86eba0b2636a8df44e35aca990fc4b00dd1f531169b782a9de8dd706f49d8ec75e381db7b5ac37021343e5f448dd4abe3737ba11f9e

Score

10^/10

djvu discovery persistence ransomware suricata

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.rigj
offline_id
Z5GGASEfY71jtxU3i3E8kzvrTJmY9oiZkjcSm0t1
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-Tjb0YqckGX 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: 0353gSd743d

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2676-116-0x00000000050F0000-0x000000000520B000-memory.dmp	family_djvu
behavioral1/memory/3104-117-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3104-118-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/3104-119-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1408-125-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/1408-130-0x0000000000400000-0x0000000000537000-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

Processes:

icacls.exe

pid process

1352 icacls.exe

pid	process
1352	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\2d255247-ca00-4f5b-83bf-72511e7ca47d\\22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe\" --AutoStart"	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.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

9 api.2ip.ua
26 api.2ip.ua
8 api.2ip.ua

flow	ioc
9	api.2ip.ua
26	api.2ip.ua
8	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe

description	pid	process	target process
PID 2676 set thread context of 3104	2676	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 3548 set thread context of 1408	3548	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.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:

22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe

pid	process
3104	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
3104	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
1408	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
1408	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe

C:\Users\Admin\AppData\Local\Temp\22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
"C:\Users\Admin\AppData\Local\Temp\22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2676

C:\Users\Admin\AppData\Local\Temp\22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
"C:\Users\Admin\AppData\Local\Temp\22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe"
2⤵
- Adds Run key to start application
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3104

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\2d255247-ca00-4f5b-83bf-72511e7ca47d" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:1352

C:\Users\Admin\AppData\Local\Temp\22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
"C:\Users\Admin\AppData\Local\Temp\22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3548

C:\Users\Admin\AppData\Local\Temp\22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
"C:\Users\Admin\AppData\Local\Temp\22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:1408

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

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
MD5
9dc67b11ad67886d83ec9cbf7922f317

SHA1
421eb58463bb0c726479bcc32f548de29991ebeb

SHA256
d2f4acc07d8bf2b562029cc85eec1b52bd37be9f276a927f565610e109308ead

SHA512
ea5995232251a3e161769484f6a49624f656ea94cc2545477daec56c3536736cee0f8554af535ca7a82e5fc687e5ee56c5955b32726b8c2c21d28c538d25b367

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
MD5
b3439cbad3deec29218c20b7294ccd3c

SHA1
01f1ecbc00e38042701d9969fd44466465ed3147

SHA256
80975f1efe7637a0b5cfd772b5eb35f7ad19e698ce674aacad7eb779c0f62249

SHA512
33fe0b38252890ef561a95f5ca661b8f3cc71df632c8939914869980672847dcd19527a0d9e1d79f274dc328b5aad5b5bf6229c4ab9ede0cb69d87d57af9d9c4

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
MD5
109510aefcf2a4ac08f6885e073d86f1

SHA1
126e3334394696d46f59ea8fe55177360c70e3d6

SHA256
d3555eee9b7568df00d8ceb1ccd8624e7528c17bbc86fc877a4b9ac01e362c11

SHA512
6c4a2272e96c19c242a0abc0b3fd42b1f379ea3c12b93c8f7635d994a6f150b491519b684b12e281e76d5eb8f79391c152dac93e4b99d8c44b12885e8f66c09c

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
MD5
0e29cf7a4098bfe7b9e0ae4d26b4e427

SHA1
ff1f66f4493b8cbb9aa04951d54a39d2a3556e97

SHA256
b277ea08e135e8dd0d898a777d8bdfb002d41b319b1ba45d419fdecde03b01a9

SHA512
b00807b5d6892a0fd85820f243f9f4939736d22b3353ca7dc00158e7d421982599d7c0c22e2a58e27a702a926a1b3c279213dc7f2bde9a4764c8f1f4247b8400

Download Submit
C:\Users\Admin\AppData\Local\2d255247-ca00-4f5b-83bf-72511e7ca47d\22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
MD5
c8fa36b648b66fc678e2d0456a2ed66a

SHA1
4681398fa0a09c5bf25ba3e71971d148c20cc369

SHA256
22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff

SHA512
06697a9d26d23bcc2851d86eba0b2636a8df44e35aca990fc4b00dd1f531169b782a9de8dd706f49d8ec75e381db7b5ac37021343e5f448dd4abe3737ba11f9e

Download Submit
memory/1352-120-0x0000000000000000-mapping.dmp

Download
memory/1408-125-0x0000000000424141-mapping.dmp

Download
memory/1408-130-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2676-115-0x0000000005059000-0x00000000050EA000-memory.dmp

Filesize
580KB

Download
memory/2676-116-0x00000000050F0000-0x000000000520B000-memory.dmp

Filesize
1.1MB

Download
memory/3104-119-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3104-118-0x0000000000424141-mapping.dmp

Download
memory/3104-117-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3548-122-0x0000000000000000-mapping.dmp

Download
memory/3548-123-0x0000000004F44000-0x0000000004FD5000-memory.dmp

Filesize
580KB

Download

description	pid	process	target process
PID 2676 wrote to memory of 3104	2676	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 2676 wrote to memory of 3104	2676	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 2676 wrote to memory of 3104	2676	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 2676 wrote to memory of 3104	2676	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 2676 wrote to memory of 3104	2676	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 2676 wrote to memory of 3104	2676	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 2676 wrote to memory of 3104	2676	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 2676 wrote to memory of 3104	2676	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 2676 wrote to memory of 3104	2676	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 2676 wrote to memory of 3104	2676	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 3104 wrote to memory of 1352	3104	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	icacls.exe
PID 3104 wrote to memory of 1352	3104	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	icacls.exe
PID 3104 wrote to memory of 1352	3104	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	icacls.exe
PID 3104 wrote to memory of 3548	3104	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 3104 wrote to memory of 3548	3104	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 3104 wrote to memory of 3548	3104	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 3548 wrote to memory of 1408	3548	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 3548 wrote to memory of 1408	3548	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 3548 wrote to memory of 1408	3548	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 3548 wrote to memory of 1408	3548	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 3548 wrote to memory of 1408	3548	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 3548 wrote to memory of 1408	3548	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 3548 wrote to memory of 1408	3548	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 3548 wrote to memory of 1408	3548	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 3548 wrote to memory of 1408	3548	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe
PID 3548 wrote to memory of 1408	3548	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe	22e994f4390f9333c5522335768dc00f3eb45efc274f82f02de2e2ef08e7acff.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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