djvu | f352876b06c96492e19d04561c4445fff1e102451655245585bc96db8a7da3b0

General

Target

be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
Size

708KB
MD5

be321c572727e800755c4b8a1259dbd0
SHA1

a7977c6c83b51f2caa7ee89b5afdbf2c5ddf3cdb
SHA256

f352876b06c96492e19d04561c4445fff1e102451655245585bc96db8a7da3b0
SHA512

258a831243ac3121368333488cfae24ae2572d94fc739238e56e4b67d69420a2ce7ca9a6645c634ab7d91040b196ad2850309df2885f1d2976b49d6de5a4703d
SSDEEP

12288:KJY8QgxiwZWsWfGdFYRLc+TFjNUSkFL7Z/5Nkq15UqsvRCZK7RHg:KJYfwosW+CRbRNU3L795P15SRndHg

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://cajgtus.com/test1/get.php

Attributes

extension
.vepi
offline_id
EGfa5svnSGFJka7LZBQoqff0QtO1IpTauoDvGvt1
payload_url
http://sdfjhuz.com/dl/build2.exe
http://cajgtus.com/files/1/build3.exe
ransomnote
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rsa_pubkey.plain

Signatures

Detected Djvu ransomware 13 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2280-6-0x0000000003C20000-0x0000000003D3B000-memory.dmp	family_djvu
behavioral1/memory/2168-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2168-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2168-7-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2168-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2956-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2956-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2956-45-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2956-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2956-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2956-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2956-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2956-54-0x0000000000400000-0x0000000000537000-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

2624 icacls.exe

pid	process
2624	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\60683876-2fea-46d5-88b7-61715e6fc93b\\be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe\" --AutoStart"	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.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
3 api.2ip.ua
4 api.2ip.ua

flow	ioc
9	api.2ip.ua
3	api.2ip.ua
4	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exebe321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe

description	pid	process	target process
PID 2280 set thread context of 2168	2280	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2528 set thread context of 2956	2528	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exebe321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe

pid process

2168 be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
2956 be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe

pid	process
2168	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
2956	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exebe321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exebe321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe

C:\Users\Admin\AppData\Local\Temp\be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2280

C:\Users\Admin\AppData\Local\Temp\be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2168

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\60683876-2fea-46d5-88b7-61715e6fc93b" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:2624

C:\Users\Admin\AppData\Local\Temp\be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2528

C:\Users\Admin\AppData\Local\Temp\be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:2956

Network

MITRE ATT&CK Matrix ATT&CK v13

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

1

T1222

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize
1KB

MD5
674eea23317dbe46466410a69968553a

SHA1
c0ce24a330de3259422311bbd95781f09493c35c

SHA256
8bf4be0a2387addca8a3a2f9ff1753e2be67ce61c2128fcddc55793e14ba209d

SHA512
28769a44c6ffe441cad1cebb6ea6c3e7dd31d59a27687760a9dc2c29f246d9be66c8eee0f72e439880e7ed950e458da3c14d56036acfb9086272b60c94a11a5a

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize
724B

MD5
8202a1cd02e7d69597995cabbe881a12

SHA1
8858d9d934b7aa9330ee73de6c476acf19929ff6

SHA256
58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

SHA512
97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize
410B

MD5
99b78c17f187b41cc3832487c55e484e

SHA1
6c48b159f6654dfad7e9dbef776bc2610ddb37ac

SHA256
91362ec040f6625ca2e715600ed525fc20f1bb120cd0d86a7f4562d2d8fc646d

SHA512
a5b51d1674861bf727bcc40657931a6d74e641b1ca5f90fb47258750df198d316132cf332a1d613ba019378736a5645bbc1cb3e7d04aebcbfc3b23b6851345e9

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize
344B

MD5
114985062bd3e95734d59c3f83885090

SHA1
0dcc9c4618a55468a212938b9461e70e92694dc8

SHA256
20a19c7e336625a3066087f3a8d117dcfcd7f98608a995e61ee825475c90c56e

SHA512
a115bca04dcc4ff15678c949d0367c4a87bd6369e70e394ae6e13db9ea583e8f4375fda9372341be95b509c88c1626a0b7ec37bef09e6ca352c2a8f462725af8

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize
392B

MD5
74a6c3d14e842223b9c922947757a302

SHA1
d8b5a546b3162f00f0341b9dd2e1511ab1edc230

SHA256
a9a5e93e661ac5877c58e822377044de73e09c972db00940be25a2000c605f40

SHA512
5b879ea3a38694d32a6ec2d3491a842b3fff385a3e01c5aa7c84d802e7595d551f832abdd29687bab27e7c4485030f97c2e9d5cf74c23990851dcddb1b080abb

Download Submit
C:\Users\Admin\AppData\Local\60683876-2fea-46d5-88b7-61715e6fc93b\be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
Filesize
708KB

MD5
be321c572727e800755c4b8a1259dbd0

SHA1
a7977c6c83b51f2caa7ee89b5afdbf2c5ddf3cdb

SHA256
f352876b06c96492e19d04561c4445fff1e102451655245585bc96db8a7da3b0

SHA512
258a831243ac3121368333488cfae24ae2572d94fc739238e56e4b67d69420a2ce7ca9a6645c634ab7d91040b196ad2850309df2885f1d2976b49d6de5a4703d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab170A.tmp
Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
memory/2168-7-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2168-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2168-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2168-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2168-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2280-1-0x0000000000250000-0x00000000002E2000-memory.dmp

Filesize
584KB

Download
memory/2280-0-0x0000000000250000-0x00000000002E2000-memory.dmp

Filesize
584KB

Download
memory/2280-6-0x0000000003C20000-0x0000000003D3B000-memory.dmp

Filesize
1.1MB

Download
memory/2528-29-0x0000000002640000-0x00000000026D2000-memory.dmp

Filesize
584KB

Download
memory/2956-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2956-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2956-45-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2956-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2956-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2956-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2956-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2956-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 2280 wrote to memory of 2168	2280	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2280 wrote to memory of 2168	2280	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2280 wrote to memory of 2168	2280	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2280 wrote to memory of 2168	2280	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2280 wrote to memory of 2168	2280	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2280 wrote to memory of 2168	2280	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2280 wrote to memory of 2168	2280	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2280 wrote to memory of 2168	2280	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2280 wrote to memory of 2168	2280	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2280 wrote to memory of 2168	2280	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2280 wrote to memory of 2168	2280	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2168 wrote to memory of 2624	2168	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	icacls.exe
PID 2168 wrote to memory of 2624	2168	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	icacls.exe
PID 2168 wrote to memory of 2624	2168	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	icacls.exe
PID 2168 wrote to memory of 2624	2168	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	icacls.exe
PID 2168 wrote to memory of 2528	2168	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2168 wrote to memory of 2528	2168	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2168 wrote to memory of 2528	2168	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2168 wrote to memory of 2528	2168	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2528 wrote to memory of 2956	2528	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2528 wrote to memory of 2956	2528	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2528 wrote to memory of 2956	2528	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2528 wrote to memory of 2956	2528	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2528 wrote to memory of 2956	2528	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2528 wrote to memory of 2956	2528	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2528 wrote to memory of 2956	2528	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2528 wrote to memory of 2956	2528	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2528 wrote to memory of 2956	2528	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2528 wrote to memory of 2956	2528	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe
PID 2528 wrote to memory of 2956	2528	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe	be321c572727e800755c4b8a1259dbd0_NeikiAnalytics.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads