djvu | 34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616

General

Target

34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe
Size

717KB
MD5

690f4210136edf1fdffc5df710f49fc5
SHA1

2dc9707fab0c03ee122665c791717461b84c0edf
SHA256

34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616
SHA512

bfe9a8d68d710e63ad7249c49b4e24bba64d3b8be1e615cd3e5fdbf3ea2a36e7eb92028bb50746ba69507b8d333d39efbbc648f754f83fa919df2a6fcad6866c

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://ring1.ug/As73yhsyU34578hxxx/SDf565g/get.php

Attributes

extension
.coot
offline_id
MRQ5kb5Z12tWuP3e25YoRt4PRDrJd2yuI3coott1
payload_url
http://ring1.ug/files/cost/updatewin1.exe
http://ring1.ug/files/cost/updatewin2.exe
http://ring1.ug/files/cost/updatewin.exe
http://ring1.ug/files/cost/3.exe
http://ring1.ug/files/cost/4.exe
http://ring1.ug/files/cost/5.exe
ransomnote
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rsa_pubkey.plain

Signatures

Detected Djvu ransomware 6 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4060-131-0x0000000006D40000-0x0000000006E5A000-memory.dmp	family_djvu
behavioral2/memory/4060-132-0x0000000000400000-0x0000000004F0C000-memory.dmp	family_djvu
behavioral2/memory/5000-137-0x0000000006CD0000-0x0000000006DEA000-memory.dmp	family_djvu
behavioral2/memory/5000-142-0x0000000000400000-0x0000000004F0C000-memory.dmp	family_djvu
behavioral2/memory/4060-144-0x0000000000400000-0x0000000004F0C000-memory.dmp	family_djvu
behavioral2/memory/5000-145-0x0000000000400000-0x0000000004F0C000-memory.dmp	family_djvu

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

Processes:

34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File Permissions Modification
T1222

Processes:

icacls.exe

pid process

1428 icacls.exe

pid	process
1428	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\e8b2a52f-3bf0-4470-aadf-7e7dfe528d14\\34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe\" --AutoStart"	34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.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

14 api.2ip.ua
15 api.2ip.ua
33 api.2ip.ua
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4412 4060 WerFault.exe 34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe

flow	ioc
14	api.2ip.ua
15	api.2ip.ua
33	api.2ip.ua

pid	pid_target	process	target process
4412	4060	WerFault.exe	34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe

pid	process
4060	34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe
4060	34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe
5000	34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe
5000	34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe

description	pid	process	target process
PID 4060 wrote to memory of 1428	4060	34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe	icacls.exe
PID 4060 wrote to memory of 1428	4060	34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe	icacls.exe
PID 4060 wrote to memory of 1428	4060	34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe	icacls.exe
PID 4060 wrote to memory of 5000	4060	34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe	34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe
PID 4060 wrote to memory of 5000	4060	34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe	34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe
PID 4060 wrote to memory of 5000	4060	34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe	34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe

C:\Users\Admin\AppData\Local\Temp\34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe
"C:\Users\Admin\AppData\Local\Temp\34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4060

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\e8b2a52f-3bf0-4470-aadf-7e7dfe528d14" /deny *S-1-1-0:(OI)(CI)(DE,DC)
2⤵
- Modifies file permissions
PID:1428

C:\Users\Admin\AppData\Local\Temp\34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe
"C:\Users\Admin\AppData\Local\Temp\34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe" --Admin IsNotAutoStart IsNotTask
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:5000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4060 -s 2140
2⤵
- Program crash
PID:4412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4060 -ip 4060
1⤵
PID:216

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

File Permissions Modification

1

T1222

Modify Registry

2

T1112

Install Root Certificate

1

T1130

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3538626A1FCCCA43C7E18F220BDD9B02
Filesize
978B

MD5
fd3c0ed2f903b82cee8366ae5210a574

SHA1
04d9fb84e566fbf5eca379c7951747829aada0d3

SHA256
0e69ae7cf7b20c41107208d239d24da5868525ae23c9add3a82c4b1811d7674c

SHA512
3c1e0ca39bedb33114b1910fe4972de4ef08edee13adf24361e362d540b30382ff7836c085ca2936e78d3a351a6523fed9e75face0c2456d4efc884c81018bdf

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize
471B

MD5
ea4b6ff54ad5a61da518bb85641eddbd

SHA1
e940a49ce73a178c951fadf5fb3ee0ed18cc8d0a

SHA256
9af94c096f9fafbe3f4107a74cf79c0e2b9c0435fe7025a26717add3e593e01f

SHA512
f7fd53ece3d03caa928674c1a23c9d66af9a2122d2f7502dd921e08efa85398fe3b29aaca54ff490ab17803ba45d4fa7236c62cc67fb589637cf7d3a1e871168

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3538626A1FCCCA43C7E18F220BDD9B02
Filesize
274B

MD5
7ffc5e271c62417b2e80e08d1050a166

SHA1
ccab57771c0755707d8b9432ec7ddf80efa5df4c

SHA256
3ce6ddf08e92f44ca7412a476787a260216f8211a7af0b32a58232c1217d7ad9

SHA512
ad6c0b5d17ff7e5b9880a194d0a5704bc069bc3ecd4966132d70931b0e0c8112fe9a2a9e353c19c18eb6b1d11ee38ecd235239b14a23bdc2b0b67e79fafab1b9

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize
396B

MD5
aa912c1daf3e5ce65f8358359f98b51b

SHA1
f03caa37eed1bcccf46b28e6223105d9110bca50

SHA256
0ada1741577e5d1fa00e482c1ffb491c2443771344672b64425703a6b6fb7a28

SHA512
00853f2f0fb93ba762b0fcef358e393ac3906f0d28b85185ab28f0cd2c6aa99972dcf5268aefdffe1afe296853f9a781ddf993b7ec8ffe2eb998d28d6c729c89

Download Submit
C:\Users\Admin\AppData\Local\e8b2a52f-3bf0-4470-aadf-7e7dfe528d14\34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616.exe
Filesize
717KB

MD5
690f4210136edf1fdffc5df710f49fc5

SHA1
2dc9707fab0c03ee122665c791717461b84c0edf

SHA256
34745abeba30e12a9dee88bcb7c3c9b119f8c21451a2d8ab2aec298c76b35616

SHA512
bfe9a8d68d710e63ad7249c49b4e24bba64d3b8be1e615cd3e5fdbf3ea2a36e7eb92028bb50746ba69507b8d333d39efbbc648f754f83fa919df2a6fcad6866c

Download Submit
memory/1428-133-0x0000000000000000-mapping.dmp

Download
memory/4060-130-0x0000000006CA9000-0x0000000006D3A000-memory.dmp

Filesize
580KB

Download
memory/4060-132-0x0000000000400000-0x0000000004F0C000-memory.dmp

Filesize
75.0MB

Download
memory/4060-131-0x0000000006D40000-0x0000000006E5A000-memory.dmp

Filesize
1.1MB

Download
memory/4060-143-0x0000000006CA9000-0x0000000006D3A000-memory.dmp

Filesize
580KB

Download
memory/4060-144-0x0000000000400000-0x0000000004F0C000-memory.dmp

Filesize
75.0MB

Download
memory/5000-135-0x0000000000000000-mapping.dmp

Download
memory/5000-136-0x0000000006BCC000-0x0000000006C5D000-memory.dmp

Filesize
580KB

Download
memory/5000-137-0x0000000006CD0000-0x0000000006DEA000-memory.dmp

Filesize
1.1MB

Download
memory/5000-142-0x0000000000400000-0x0000000004F0C000-memory.dmp

Filesize
75.0MB

Download
memory/5000-145-0x0000000000400000-0x0000000004F0C000-memory.dmp

Filesize
75.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads