MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7b858664b4283d8d0be155dc6bbe9f279e066b6cf2dd985eef95698e77333900. 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
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SHA256 hash: 7b858664b4283d8d0be155dc6bbe9f279e066b6cf2dd985eef95698e77333900
SHA3-384 hash: 6ae366d70e2ff5c3d291793b43f94648c20041bebaa51ea75fa6f0b82636cfdbc038efce1d92b384ee365749a0beb6ea
SHA1 hash: 2e6290d850de69c57a1a73bae251d550e5223e7d
MD5 hash: 9d27e60dc877f280ec4bc6b4c320741f
humanhash: december-autumn-lamp-timing
File name:BhVQ8rqxTUy5ijy.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:741'376 bytes
First seen:2021-09-29 02:17:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:4Xz3M39OxpK6NLmqj8TEoJkf85+3gStafsWV9r56tJuxYrO:c3M398pqqI4Okk0QSMfsWvInux4O
Threatray 9'701 similar samples on MalwareBazaar
TLSH T156F4E0237B5DEC26C22832FC9990D5C90176AE806C45DB46B8703BADEAF4B57DC1E14E
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
131
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
BhVQ8rqxTUy5ijy.exe
Verdict:
Malicious activity
Analysis date:
2021-09-29 02:18:47 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/67b9b06a-c8f2-45f1-b0e9-03df6f0d2a97

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/192743/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.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
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/81d9bba7-f6ce-4e18-8744-6c076997832f
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/860457
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
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 netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 492888 Sample: BhVQ8rqxTUy5ijy.exe Startdate: 29/09/2021 Architecture: WINDOWS Score: 100 31 www.aspectjudge.com 2->31 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 8 other signatures 2->45 11 BhVQ8rqxTUy5ijy.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\...\BhVQ8rqxTUy5ijy.exe.log, ASCII 11->29 dropped 57 Writes to foreign memory regions 11->57 59 Injects a PE file into a foreign processes 11->59 15 RegSvcs.exe 11->15         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 2 other signatures 15->67 18 explorer.exe 15->18 injected process9 dnsIp10 33 kmknim.com 50.87.249.32, 49794, 80 UNIFIEDLAYER-AS-1US United States 18->33 35 www.hosting-premium-online.com 104.21.66.73, 49793, 80 CLOUDFLARENETUS United States 18->35 37 5 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 49 Uses netsh to modify the Windows network and firewall settings 18->49 22 netsh.exe 18->22         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7b858664b4283d8d0be155dc6bbe9f279e066b6cf2dd985eef95698e77333900/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-29 02:18:09 UTC
AV detection:
22 of 45 (48.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pocymzfufa6y2c7bkxogxpu7e6pam23m6lozqxxpsvuy45ztheaa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
4eb131114c2b67395cff2f126c699a569e6ba5e3a53876f79588dfa0924b3d7e
Formbook
50c6754cbbd313acc6a250182439a1191d8f8318f0794feea75bd647b6205f7a
Formbook
5c8f31380d956958134331ea55e63835fd16ca1f02f4c81672b69db70bc97ab8
Formbook
5e27b2f6ec7f0387f6c380ac26eb924fcc732601c43ed7c400c42ae82fb0de57
Formbook
774c08451198a951fa73f9859b5e48c12c5df9214759e4717e56d92fb4c09d1e
Formbook
87f8905d999f293634fddf1bff47a614041bdfaa2f07ef19fe70e5296a7b086e
Formbook
984dec79b881adf59d5308f52fddeda0fbccbd917b750f6ec9a5be1a1a4dc0fa
Formbook
a0d1e3fbe11fcbbea9dcad1880e23ea531c01c20fbbf383174cd420349657a01
Formbook
a51f4703edfdf96e7d4ed7efc9591119973c192d81131c73c24b39f9f6f7b60b
Formbook
d2c3619f62ee7f09594134678d02e47d6a0b71a5e203f3edae6a9f5dbecb4f48
Formbook
+ 9'691 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:jdt0 loader rat suricata
Link:
https://tria.ge/reports/210929-crbksaddgn/
Behaviour
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
Suspicious use of SetThreadContext
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.jen4x.com/jdt0/
Unpacked files
SH256 hash:
752d86779f0a6e6a1ab9ce1b34a113bd51253f49245eb1553fabe75fdcef86a0
MD5 hash:
0b1d2881da374de2f3751c4f85f6fdc9
SHA1 hash:
65c1b8747dbba9dd5ddbf4db72ef0eecd05413a7
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/d4321d19-4fc1-47ae-8d34-d7c7f3c3e7f9/
Parent samples :
4eb131114c2b67395cff2f126c699a569e6ba5e3a53876f79588dfa0924b3d7e
a51f4703edfdf96e7d4ed7efc9591119973c192d81131c73c24b39f9f6f7b60b
984dec79b881adf59d5308f52fddeda0fbccbd917b750f6ec9a5be1a1a4dc0fa
5e27b2f6ec7f0387f6c380ac26eb924fcc732601c43ed7c400c42ae82fb0de57
d2c3619f62ee7f09594134678d02e47d6a0b71a5e203f3edae6a9f5dbecb4f48
7b858664b4283d8d0be155dc6bbe9f279e066b6cf2dd985eef95698e77333900
SH256 hash:
24834f531d0705dacaa5caaef047d9b31706e887a82b2c5a6127b15ab0136eb6
MD5 hash:
e11cf7b28d4b01691108182df8e01475
SHA1 hash:
dcbce9ade8ee470654cb3b180eeb8b033c06e02d
Link:
https://www.unpac.me/results/d4321d19-4fc1-47ae-8d34-d7c7f3c3e7f9/
SH256 hash:
e3acb5a324c484fe65cee46cae5a4fb1ccd061d899ec7fa6c91a86bff6d5b1d8
MD5 hash:
9cebe215912117f150005b2248d6b7b1
SHA1 hash:
c59f76b7cd8de8586de5b94d7473b0960d338821
Link:
https://www.unpac.me/results/d4321d19-4fc1-47ae-8d34-d7c7f3c3e7f9/
SH256 hash:
6fef8420a8bd6a90cfe7ac8aeb0e3811422b9b6cb9e0b14ea03f5236438f72ba
MD5 hash:
10c7772f435231d58046e0dc34def127
SHA1 hash:
38c8f9ffb5136848d62582ef41bab6c810121c74
Link:
https://www.unpac.me/results/d4321d19-4fc1-47ae-8d34-d7c7f3c3e7f9/
SH256 hash:
f7d272daf3522f99ca67b99bfe557564baba239104c7f20cef842f2e870bdf28
MD5 hash:
cceaca53d81061c0f1c6cf35ca7bf34b
SHA1 hash:
23ba45b249e0e4bdc5a8d4b4b07e2f7509cf85be
Link:
https://www.unpac.me/results/d4321d19-4fc1-47ae-8d34-d7c7f3c3e7f9/
SH256 hash:
7b858664b4283d8d0be155dc6bbe9f279e066b6cf2dd985eef95698e77333900
MD5 hash:
9d27e60dc877f280ec4bc6b4c320741f
SHA1 hash:
2e6290d850de69c57a1a73bae251d550e5223e7d
Link:
https://www.unpac.me/results/d4321d19-4fc1-47ae-8d34-d7c7f3c3e7f9/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/7b858664b428/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/7b858664b4283d8d0be155dc6bbe9f279e066b6cf2dd985eef95698e77333900

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 7b858664b4283d8d0be155dc6bbe9f279e066b6cf2dd985eef95698e77333900

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/192743/

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