djvu | a030bbfbafcd881d49500f18a98f9942e8e1e05376cc2dcf64e9e41ee2ab7b11

Analysis

max time kernel
363s
max time network
362s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-06-2024 19:47

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General

Target

78E.tmp.exe
Size

466KB
MD5

246d6fa957bd9bd9bd444ba8a6c38457
SHA1

fb90a2e9e3f3d4bf350a5c8d475c843f072bc1f5
SHA256

9c17cc38feddc8aec42f4d7e84ff85260e0e5d955c38e42573a21c18836c7a59
SHA512

95e3135f417fdfd91c8e57545c246c5a0f5efc40fe1e3ef745b8283c35b156d7814934be5983dd5532b7fb789a4032a3e1d619281d0e4e1b465b86f2a036e3bb
SSDEEP

6144:agBl9KO2wSlnYlm8px3b3RY+F2q9QgW6jw5oJ48ph1nt2EuqAs00:aEKOZSlnbE3b3RiqW6jw5o6831/A

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

http://root.ug/Asjdhfiughdhhjbdfh45687husdfhipenelop8/Asdhuage7386/get.php

Attributes

extension
.sarut
offline_id
pQseAIqgTVhPujMMiqH1ILPNUg3soGVim0NAnkt1
payload_url
http://pool.ug/tesptc/penelop/updatewin1.exe
http://pool.ug/tesptc/penelop/updatewin2.exe
http://pool.ug/tesptc/penelop/updatewin.exe
http://pool.ug/tesptc/penelop/3.exe
http://pool.ug/tesptc/penelop/4.exe
http://pool.ug/tesptc/penelop/5.exe
ransomnote
ATTENTION! Don't worry my friend, you can return all your files! All your files like photos, 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-1aTCryfzhK 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] Our Telegram account: @datarestore Your personal ID: 078AKsudu438fyasfs

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 14 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2684-2-0x0000000000400000-0x000000000047A000-memory.dmp	family_djvu
behavioral1/memory/2684-24-0x0000000000400000-0x000000000047A000-memory.dmp	family_djvu
behavioral1/memory/2684-22-0x0000000000400000-0x00000000004BC000-memory.dmp	family_djvu
behavioral1/memory/2536-26-0x0000000000400000-0x00000000004BC000-memory.dmp	family_djvu
behavioral1/memory/2536-41-0x0000000000400000-0x00000000004BC000-memory.dmp	family_djvu
behavioral1/memory/2536-42-0x0000000000400000-0x00000000004BC000-memory.dmp	family_djvu
behavioral1/memory/2536-46-0x0000000000400000-0x00000000004BC000-memory.dmp	family_djvu
behavioral1/memory/760-47-0x0000000000400000-0x00000000004BC000-memory.dmp	family_djvu
behavioral1/memory/760-59-0x0000000000400000-0x00000000004BC000-memory.dmp	family_djvu
behavioral1/memory/2536-60-0x0000000000400000-0x00000000004BC000-memory.dmp	family_djvu
behavioral1/memory/2536-472-0x0000000000400000-0x00000000004BC000-memory.dmp	family_djvu
behavioral1/memory/804-486-0x0000000000400000-0x00000000004BC000-memory.dmp	family_djvu
behavioral1/memory/804-489-0x0000000000400000-0x00000000004BC000-memory.dmp	family_djvu
behavioral1/memory/804-490-0x0000000000400000-0x00000000004BC000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Renames multiple (203) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware
Executes dropped EXE 2 IoCs

Processes:

78E.tmp.exe78E.tmp.exe

pid process

760 78E.tmp.exe
804 78E.tmp.exe
Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

2812 icacls.exe

pid	process
760	78E.tmp.exe
804	78E.tmp.exe

pid	process
2812	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

78E.tmp.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\71d62516-e504-4f66-9ea7-cdb83e0c2598\\78E.tmp.exe\" --AutoStart"	78E.tmp.exe

Looks up external IP address via web service 6 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

18 api.2ip.ua
24 api.2ip.ua
25 api.2ip.ua
3 api.2ip.ua
4 api.2ip.ua
9 api.2ip.ua
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

78E.tmp.exe78E.tmp.exe78E.tmp.exe78E.tmp.exe

pid process

2684 78E.tmp.exe
2536 78E.tmp.exe
760 78E.tmp.exe
760 78E.tmp.exe
804 78E.tmp.exe

flow	ioc
18	api.2ip.ua
24	api.2ip.ua
25	api.2ip.ua
3	api.2ip.ua
4	api.2ip.ua
9	api.2ip.ua

pid	process
2684	78E.tmp.exe
2536	78E.tmp.exe
760	78E.tmp.exe
760	78E.tmp.exe
804	78E.tmp.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

78E.tmp.exetaskeng.exe

description	pid	process	target process
PID 2684 wrote to memory of 2812	2684	78E.tmp.exe	icacls.exe
PID 2684 wrote to memory of 2812	2684	78E.tmp.exe	icacls.exe
PID 2684 wrote to memory of 2812	2684	78E.tmp.exe	icacls.exe
PID 2684 wrote to memory of 2812	2684	78E.tmp.exe	icacls.exe
PID 2684 wrote to memory of 2536	2684	78E.tmp.exe	78E.tmp.exe
PID 2684 wrote to memory of 2536	2684	78E.tmp.exe	78E.tmp.exe
PID 2684 wrote to memory of 2536	2684	78E.tmp.exe	78E.tmp.exe
PID 2684 wrote to memory of 2536	2684	78E.tmp.exe	78E.tmp.exe
PID 2032 wrote to memory of 760	2032	taskeng.exe	78E.tmp.exe
PID 2032 wrote to memory of 760	2032	taskeng.exe	78E.tmp.exe
PID 2032 wrote to memory of 760	2032	taskeng.exe	78E.tmp.exe
PID 2032 wrote to memory of 760	2032	taskeng.exe	78E.tmp.exe
PID 2032 wrote to memory of 804	2032	taskeng.exe	78E.tmp.exe
PID 2032 wrote to memory of 804	2032	taskeng.exe	78E.tmp.exe
PID 2032 wrote to memory of 804	2032	taskeng.exe	78E.tmp.exe
PID 2032 wrote to memory of 804	2032	taskeng.exe	78E.tmp.exe

C:\Users\Admin\AppData\Local\Temp\78E.tmp.exe
"C:\Users\Admin\AppData\Local\Temp\78E.tmp.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2684

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\71d62516-e504-4f66-9ea7-cdb83e0c2598" /deny *S-1-1-0:(OI)(CI)(DE,DC)
2⤵
- Modifies file permissions
PID:2812

C:\Users\Admin\AppData\Local\Temp\78E.tmp.exe
"C:\Users\Admin\AppData\Local\Temp\78E.tmp.exe" --Admin IsNotAutoStart IsNotTask
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:2536

C:\Windows\system32\taskeng.exe
taskeng.exe {EE79852B-8660-4A18-A7F8-CF5E94C24D62} S-1-5-21-1298544033-3225604241-2703760938-1000:IZKCKOTP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2032

C:\Users\Admin\AppData\Local\71d62516-e504-4f66-9ea7-cdb83e0c2598\78E.tmp.exe
C:\Users\Admin\AppData\Local\71d62516-e504-4f66-9ea7-cdb83e0c2598\78E.tmp.exe --Task
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:760

C:\Users\Admin\AppData\Local\71d62516-e504-4f66-9ea7-cdb83e0c2598\78E.tmp.exe
C:\Users\Admin\AppData\Local\71d62516-e504-4f66-9ea7-cdb83e0c2598\78E.tmp.exe --Task
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:804

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\SystemID\PersonalID.txt
Filesize
42B

MD5
045d3b6dd6c139389c8dfe8a570c126e

SHA1
10845462e28486787f33d39ee3af98058c43c5ee

SHA256
92e4f4d6985ed6cbb2594576eb14961b2af1d29ec3a52200fae084c04c0744f7

SHA512
ebf2ca8828ddf9a3ecb3cdf5f0b6d5d63341ae947c6e5ea7d6a15480be6a4b2a8bc4472a0404ec2b4123cb97879a66dbc744f1b9d7f9ff4f139ac3d9d1ffd969

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize
1KB

MD5
2365869258df7a66a2121b802ca4afd9

SHA1
73acc30a2edeb9d6830de559bb8a74f35168135d

SHA256
d6b1932822bbd72a8e78c771717d992142348f67d625a42393719fefbe59b0ed

SHA512
795004bab536e128dbd81c188976d37c7b650efbfa5a80374df4c65a1049c27658f4620b7605583928eb167fcb69b4c99e4c8730c507b824a7bde9c7fb0e21f4

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8
Filesize
436B

MD5
1bfe0a81db078ea084ff82fe545176fe

SHA1
50b116f578bd272922fa8eae94f7b02fd3b88384

SHA256
5ba8817f13eee00e75158bad93076ab474a068c6b52686579e0f728fda68499f

SHA512
37c582f3f09f8d80529608c09041295d1644bcc9de6fb8c4669b05339b0dd870f9525abc5eed53ad06a94b51441275504bc943c336c5beb63b53460ba836ca8d

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357
Filesize
1KB

MD5
a266bb7dcc38a562631361bbf61dd11b

SHA1
3b1efd3a66ea28b16697394703a72ca340a05bd5

SHA256
df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

SHA512
0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize
174B

MD5
599d09d1823cc6a3d8a2682520df24a3

SHA1
2356f9984a6ded1c94ff7794337ff4bde25ca113

SHA256
f526921627044313d8f59976d67f44c843e26e49c5118248c9b61b3b960020e2

SHA512
411fd7b89d52958cd4a570cfa3be350044fe66f026ac5872feb90081bea46b7ba2298f5481a539367a3215d3138b753eb3aa81b53810735f634c0a39a154c27b

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

MD5
9fae109ace9b5d2dae171204e40d43c8

SHA1
c3b73acbd0d142ea222da1c75e8854566ca628d4

SHA256
846d4627fff6f3bce8efb8256a19edd8c9fe3577529df27ba46eaa3f34544990

SHA512
3393ad4ce0a4a1341df94ed04ab80dcf4f48d348c818ee29ce6e4f62760d3e495c9ed02ca7e48ce6fa952ce472ac07f4a329f10f58db023c97593cf41ff6e276

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize
170B

MD5
798bb257898c14c1ec8fa57016e76da5

SHA1
7189e6c78766fed12a4dc811fb579d8772ccd76b

SHA256
c9eb77d8e851af3ea9165c4b39d63b759941c6bafef2279c760f1dc77568ec91

SHA512
c9e1e8e5caf677a99296d4df1bead106f5ebed4372bc3f942070dc534947ff4e59a277c945d7edb5a238368dd974c852e1c70c695091d90c92e4701d1da1e76b

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357
Filesize
242B

MD5
b3c4f3c6be3e272690c3de687a5d9176

SHA1
5bc98cddf6c6b8f9083777ea2b37904a915c17b3

SHA256
fea82594531e245e9aebcfcb044d1dda2237de9edc451d55153808c0ec90b66f

SHA512
bc67cd56105dcdbbeba2ee526bdc37fe1f7231f90326dedb4d82e2a6aa64b89298a09718a85351c9652c787a317e4c951d15dde506c0ad28237e7d12715e6cab

Download Submit
C:\Users\Admin\AppData\Local\71d62516-e504-4f66-9ea7-cdb83e0c2598\78E.tmp.exe
Filesize
466KB

MD5
246d6fa957bd9bd9bd444ba8a6c38457

SHA1
fb90a2e9e3f3d4bf350a5c8d475c843f072bc1f5

SHA256
9c17cc38feddc8aec42f4d7e84ff85260e0e5d955c38e42573a21c18836c7a59

SHA512
95e3135f417fdfd91c8e57545c246c5a0f5efc40fe1e3ef745b8283c35b156d7814934be5983dd5532b7fb789a4032a3e1d619281d0e4e1b465b86f2a036e3bb

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab38EB.tmp
Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarAFC0.tmp
Filesize
171KB

MD5
9c0c641c06238516f27941aa1166d427

SHA1
64cd549fb8cf014fcd9312aa7a5b023847b6c977

SHA256
4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

SHA512
936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

Download Submit
memory/760-59-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/760-47-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/804-486-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/804-490-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/804-489-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2536-41-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2536-42-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2536-46-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2536-26-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2536-60-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2536-472-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2684-1-0x0000000000920000-0x0000000000A20000-memory.dmp

Filesize
1024KB

Download
memory/2684-24-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2684-2-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2684-23-0x0000000000920000-0x0000000000A20000-memory.dmp

Filesize
1024KB

Download
memory/2684-22-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download