MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3f8e34bd933c4259f2d7291ca94c5ad6fdb8d5ddbfeffe1adf7af7317062776. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


CryptBot


Vendor detections: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b3f8e34bd933c4259f2d7291ca94c5ad6fdb8d5ddbfeffe1adf7af7317062776
SHA3-384 hash: cfb5d7e15632e5da98f18a817cac209f9a86b77f986d0c768fee136bdfac1e02fb6bbc7026fd17df359e113ffa557278
SHA1 hash: 951544a3d1f8ee84e418e5b5c99da4f66f0a5c19
MD5 hash: 4282394fd3551742ce3ee710156780a9
humanhash: uranus-island-hotel-single
File name:4282394fd3551742ce3ee710156780a9.exe
Download: download sample
Signature CryptBot
Create hunting rule
File size:416'256 bytes
First seen:2021-12-20 08:46:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9b5e0e93b958d7de96d2eb171562e213 (5 x ArkeiStealer, 4 x RedLineStealer, 3 x Smoke Loader)
ssdeep 6144:63dLayih25aw5Jm/cdpbY/DBwm//57sChfZekvX:IdZiIJkUDb6Bw0/57BfZek
Threatray 341 similar samples on MalwareBazaar
TLSH T19094AF00A6A0C031F5B226F85A75A3B5EA3F7DE1A72590CF12D53AEE5674AD1EC31307
File icon (PE):PE icon
dhash icon 25ac1378399b9b91 (28 x Smoke Loader, 24 x Amadey, 21 x RedLineStealer)
Reporter abuse_ch
Tags:CryptBot exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
163
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/215382/
Detection(s):
Win.Malware.Sabsik-9916500-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% subdirectories
Creating a window
DNS request
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/2709/overview
Behaviour
MalwareBazaar
MeasuringTime
SystemUptime
EvasionGetTickCount
CheckCmdLine
EvasionQueryPerformanceCounter
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/61c043074ab5c44cbf4a0614/reports/c17a76e0-e02c-4abb-a799-e6eb76ec803a/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
CryptBot
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/88e06c68-b86e-4aca-8503-240baf2814d3
Result
Threat name:
Cryptbot
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/910123
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Tries to harvest and steal browser information (history, passwords, etc)
Yara detected Cryptbot
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b3f8e34bd933c4259f2d7291ca94c5ad6fdb8d5ddbfeffe1adf7af7317062776/
Threat name:
Win32.Trojan.Strab
Create hunting rule
Status:
Malicious
First seen:
2021-12-19 23:56:24 UTC
File Type:
PE (Exe)
Extracted files:
17
AV detection:
25 of 27 (92.59%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wp4ogs6zgpcclhznoki4vfgfvvx5xdk53p7p7ynn66xxgfyge53a._file
Verdict:
malicious
Similar samples:
09185e4fe865342754563f1c4198c13fc8f0bc6854021bb3b75bbf48021e0a34
CryptBot
0cff6022d3d4fe110a54987e32a9be498232c0e90942c29e7a421a899bc0a926
CryptBot
15032edd565210b7308a0de6e9cc1d81ba9786ca206b7e5af69b0a2015e1a939
CryptBot
a13eacd014b6b5032f0b2e0c18bf380f4f371b181e750e7d421870cb6c59aeff
CryptBot
b0884a21366325f9e9242b357e7f3d5acf63b7b38e02988e1c1f3454230b5877
CryptBot
b2c7ead7295f3befcb94f97f39ec05331321fb64a26616afd18c780076350e52
CryptBot
b70efdad415e7623f446dfdc9666d872f9717697cefef6953fba94c6a821d162
CryptBot
ec6e099f84fbabe87d76bdfd35ddfd5b152a7cfe76b486d51037bb36d85934bb
CryptBot
fc79c3c3b0d705e0648d493c8aac851f40fcf8dc2cacdc163f9cc237dc821255
CryptBot
+ 331 additional samples on MalwareBazaar
Result
Malware family:
cryptbot
Create hunting rule
Score:
  10/10
Tags:
family:cryptbot discovery spyware stealer
Link:
https://tria.ge/reports/211220-kpv6eaaad6/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Deletes itself
Reads user/profile data of web browsers
CryptBot
Malware Config
C2 Extraction:
sezfva72.top
morbaf07.top
Unpacked files
SH256 hash:
f328e243f8ad4253e62a5b37c849eabce30084e2319f554690e4b77cde51880a
MD5 hash:
6808857114ee233b4113e09c2bf47f34
SHA1 hash:
d7c37b19ccae94ef89bcc6f9cdbe0bfc8677a312
Link:
https://www.unpac.me/results/c7cf52c3-7eb6-418a-a18b-c899d9a9d7a2/
SH256 hash:
b3f8e34bd933c4259f2d7291ca94c5ad6fdb8d5ddbfeffe1adf7af7317062776
MD5 hash:
4282394fd3551742ce3ee710156780a9
SHA1 hash:
951544a3d1f8ee84e418e5b5c99da4f66f0a5c19
Link:
https://www.unpac.me/results/c7cf52c3-7eb6-418a-a18b-c899d9a9d7a2/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b3f8e34bd933c4259f2d7291ca94c5ad6fdb8d5ddbfeffe1adf7af7317062776

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_CryptoWallets
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many cryptocurrency mining wallets or apps. Observed in information stealers
Rule name:MALWARE_Win_CryptBot
Create hunting rule
Author:ditekSHen
Description:CryptBot/Fugrafa stealer payload

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

CryptBot

Executable exe b3f8e34bd933c4259f2d7291ca94c5ad6fdb8d5ddbfeffe1adf7af7317062776

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1895558/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/215382/

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