MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c299b147655000b066676d4e3957f5583819bdda36c7d7710151932a337d2ba. 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


Formbook


Vendor detections: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3c299b147655000b066676d4e3957f5583819bdda36c7d7710151932a337d2ba
SHA3-384 hash: 997d9ef80e664569e2d84fde7d90919c4030ca208e35845f53ffdfc57eaf5f0aefaaed2ae8b9c137c0df8c940382f6a1
SHA1 hash: dbe1dd683aef95dc19f646cb1ba4b3e4c9c81bf8
MD5 hash: 169f80655af13634bb1040ddddbb922a
humanhash: potato-north-maine-spring
File name:82051082.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:635'904 bytes
First seen:2021-10-08 22:17:00 UTC
Last seen:2021-10-08 22:45:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'737 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:zMYv6GXWQU77ZLqAlz4Fo4KIsn1zEEwrmHUX:MdN57p4Fi75EE4mu
Threatray 10'099 similar samples on MalwareBazaar
TLSH T1D2D49BA45565B3A2DA5C0FF050562AFDCA6D5D7FAA31F2CEAC49702123F36C2B131D82
File icon (PE):PE icon
dhash icon 95e8c49692d4e892 (2 x AgentTesla, 1 x Formbook, 1 x njrat)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
361
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
82051082.exe
Verdict:
Malicious activity
Analysis date:
2021-10-08 22:19:18 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/e147bb71-5dcb-4add-97f1-b786899f6c3d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/196245/
Detection(s):
SecuriteInfo.com.Suspicious.Win32.Save.a.9864.22931.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6160c363ddf069d1b6a42c11/reports/5e92e6b0-99ce-435a-ae52-e48820898a7f/overview
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/867322
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 499750 Sample: 82051082.exe Startdate: 09/10/2021 Architecture: WINDOWS Score: 100 39 www.thesewhitevvalls.com 2->39 41 www.onayli.net 2->41 49 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->49 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 6 other signatures 2->55 11 82051082.exe 7 2->11         started        signatures3 process4 file5 33 C:\Users\user\AppData\Local\...\tmp3B7C.tmp, XML 11->33 dropped 35 C:\Users\user\AppData\...\82051082.exe.log, ASCII 11->35 dropped 37 C:\Users\user\AppData\...\iRnQGafwXKtcd.exe, PE32 11->37 dropped 69 Uses schtasks.exe or at.exe to add and modify task schedules 11->69 71 Tries to detect virtualization through RDTSC time measurements 11->71 15 82051082.exe 11->15         started        18 schtasks.exe 1 11->18         started        signatures6 process7 signatures8 73 Modifies the context of a thread in another process (thread injection) 15->73 75 Maps a DLL or memory area into another process 15->75 77 Sample uses process hollowing technique 15->77 79 Queues an APC in another process (thread injection) 15->79 20 explorer.exe 15->20 injected 24 conhost.exe 18->24         started        process9 dnsIp10 43 roleconstructora.com 192.185.131.113, 49826, 80 UNIFIEDLAYER-AS-1US United States 20->43 45 www.reyuzed.com 213.171.195.105, 49824, 80 ONEANDONE-ASBrauerstrasse48DE United Kingdom 20->45 47 12 other IPs or domains 20->47 57 System process connects to network (likely due to code injection or exploit) 20->57 59 Performs DNS queries to domains with low reputation 20->59 26 wscript.exe 20->26         started        signatures11 process12 signatures13 61 Self deletion via cmd delete 26->61 63 Modifies the context of a thread in another process (thread injection) 26->63 65 Maps a DLL or memory area into another process 26->65 67 Tries to detect virtualization through RDTSC time measurements 26->67 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3c299b147655000b066676d4e3957f5583819bdda36c7d7710151932a337d2ba/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-10-08 22:17:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
23
AV detection:
25 of 28 (89.29%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hquzwfdwkuaawbtgo3kohfl7kwbydg65unwh25yqcumtfizx2k5a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1771bccdd4c4fdc7d50d97ac10e5b1e0f980a4ff31233c59e9cfa17e9cd36a24
Formbook
2d0bddbcdb78a0fed7250784feb4238aa9ad086fb4c9ab8d7c877a6ff503d309
Formbook
2dc7525f9ee6e09a25f840b457bf5b0ba228c4697e1f3d4b81bd2964d2eafc61
Formbook
31126bb88883cdb4de8893da0c275cb8e1bc3889258cc7710617b5c65cd6f476
Formbook
3ac2da7ec8b0c46550c9b85707c4743ea4cacbb5bb6ee0fd159792f3978e3ad3
Formbook
40da3a76d7dfbe395b879dc9b090af73483617c65c7c433975490c0a22e4a71a
Formbook
50c6754cbbd313acc6a250182439a1191d8f8318f0794feea75bd647b6205f7a
Formbook
ab4676fc90e455da2127126bfbd1fd167328c79eda83f686ef71dd89266825f5
Formbook
e51c60f40080414b74c2eeef62780b28aa31c7875dada6dc2097323a61cc8396
Formbook
ea12191fcd49d36b68be2c466a24cac87cfd79f9d1fb18ef252037f0fb976979
Formbook
+ 10'089 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:b2c0 loader rat
Link:
https://tria.ge/reports/211008-17cd1sehb8/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.thesewhitevvalls.com/b2c0/
Unpacked files
SH256 hash:
ada6701c3577dfc968d29951e11435733ed201c228d21d05dffaf26fba9be80b
MD5 hash:
00950d2c2f77713a0bb9a84b022a27b8
SHA1 hash:
642f8c60a60249208e8920c78773f88b047b2951
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/1e5fdca0-2fa6-4120-bd95-bd233f1c2e1e/
Parent samples :
e51c60f40080414b74c2eeef62780b28aa31c7875dada6dc2097323a61cc8396
ab4676fc90e455da2127126bfbd1fd167328c79eda83f686ef71dd89266825f5
ea12191fcd49d36b68be2c466a24cac87cfd79f9d1fb18ef252037f0fb976979
40da3a76d7dfbe395b879dc9b090af73483617c65c7c433975490c0a22e4a71a
3ac2da7ec8b0c46550c9b85707c4743ea4cacbb5bb6ee0fd159792f3978e3ad3
2d0bddbcdb78a0fed7250784feb4238aa9ad086fb4c9ab8d7c877a6ff503d309
3c299b147655000b066676d4e3957f5583819bdda36c7d7710151932a337d2ba
d4d741eed6175c2c27cad4ef53d1413c9722b37411e82f30334a611bcbe856b2
612a346d3e2412113c53343b67419bc7a13bcf1bfe890137b68b3b5553a20096
a16f2d423430943200368f83b9a96afc304d51d94e04559a456491632948799d
5bb8975c8a7e8080a8a68034458adfb7b8e9812b5a1fdd15f891656b03d086e6
6623c86614f32885765a529c796fbe3e3b476dc58782a813e622d0d0873eaafb
62af6d80ae19c6beb856b49527eb3bb0d594e7f33c7cb927c7c58f72b9523ea6
f8b6860b5f79411ce377df615b3e72745e773c9e89347fdf00adea4f8200e51d
19bc9a34f4a074428bec1c81bb731aab86b38d877dca82ecae158f9b29d93dbf
SH256 hash:
b5a7dcf889050932c9ba5185929033ac1fad767700779f9c0ae600502fd3c8fd
MD5 hash:
108bca39afc4171c468f234021b2c317
SHA1 hash:
f515736d8d9791a0d94561e5fdf5f5b486451f15
Link:
https://www.unpac.me/results/1e5fdca0-2fa6-4120-bd95-bd233f1c2e1e/
SH256 hash:
d434e7cb4105d7e760a39a1a8a1306338b00fbd6507025d53e4c44ede73d3788
MD5 hash:
6613b992e916924c3f38a179bb9866ab
SHA1 hash:
cd5741f4d0a4685c5fd9c9e2e708bbf33ec1691a
Link:
https://www.unpac.me/results/1e5fdca0-2fa6-4120-bd95-bd233f1c2e1e/
SH256 hash:
3c299b147655000b066676d4e3957f5583819bdda36c7d7710151932a337d2ba
MD5 hash:
169f80655af13634bb1040ddddbb922a
SHA1 hash:
dbe1dd683aef95dc19f646cb1ba4b3e4c9c81bf8
Link:
https://www.unpac.me/results/1e5fdca0-2fa6-4120-bd95-bd233f1c2e1e/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/3c299b147655/report/overview.html
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/3c299b147655000b066676d4e3957f5583819bdda36c7d7710151932a337d2ba

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:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

Executable exe 3c299b147655000b066676d4e3957f5583819bdda36c7d7710151932a337d2ba

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/196245/

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