MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bb3c7c8fd106ec093136d2c42378882252933a0a5b1374f335486733082bc1b6. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bb3c7c8fd106ec093136d2c42378882252933a0a5b1374f335486733082bc1b6
SHA3-384 hash: 532220f21d329abf63b7d1e2ff9491213d461db3a5013ab31c50c91ce4f4102da80a5fd8272fa2d56bd237448666d3f4
SHA1 hash: 750ccc54cf5d02811ce31be9a7661f0763ba2a9b
MD5 hash: 939fd6eba33a8269d46bb669eec9add1
humanhash: fish-timing-emma-louisiana
File name:939fd6eba33a8269d46bb669eec9add1.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:322'503 bytes
First seen:2022-02-24 08:59:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:TxDR47vX+zVPVyQbC4ach5hNqyy1+uFCaeTMltbK/Zm9bFdU:KvAVNyC5PylgaaPRsU
TLSH T10864122E29D41577DBA2457401B97D2CE3F3AB0A238F765713987B2B37322670E58217
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
200
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/244181/
Detection(s):
Win.Malware.Fragtor-9939961-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/621748f83b743d74eee46acf/reports/321e8188-bf22-440c-8394-7ff623532dfe/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:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2d9dad67-0a74-49aa-9c02-bfd9f921d23f
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/945508
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 577984 Sample: Tn0DvHpW3f.exe Startdate: 24/02/2022 Architecture: WINDOWS Score: 100 34 www.lysa-security.com 2->34 36 lysa-security.com 2->36 52 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 4 other signatures 2->58 12 Tn0DvHpW3f.exe 18 2->12         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\...\tdmhvgz.exe, PE32 12->32 dropped 15 tdmhvgz.exe 12->15         started        process6 signatures7 68 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->68 70 Tries to detect virtualization through RDTSC time measurements 15->70 72 Injects a PE file into a foreign processes 15->72 18 tdmhvgz.exe 15->18         started        process8 signatures9 44 Modifies the context of a thread in another process (thread injection) 18->44 46 Maps a DLL or memory area into another process 18->46 48 Sample uses process hollowing technique 18->48 50 Queues an APC in another process (thread injection) 18->50 21 explorer.exe 18->21 injected process10 dnsIp11 38 banahinvestments.com 162.244.254.211, 49785, 80 WEHOSTWEBSITES-COMUS United States 21->38 40 distressedthenblessed.com 162.241.218.205, 49784, 80 UNIFIEDLAYER-AS-1US United States 21->40 42 10 other IPs or domains 21->42 60 System process connects to network (likely due to code injection or exploit) 21->60 25 wscript.exe 21->25         started        signatures12 process13 signatures14 62 Modifies the context of a thread in another process (thread injection) 25->62 64 Maps a DLL or memory area into another process 25->64 66 Tries to detect virtualization through RDTSC time measurements 25->66 28 cmd.exe 1 25->28         started        process15 process16 30 conhost.exe 28->30         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/bb3c7c8fd106ec093136d2c42378882252933a0a5b1374f335486733082bc1b6/
Threat name:
Win32.Trojan.NSISInject
Create hunting rule
Status:
Malicious
First seen:
2022-02-24 06:01:38 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
20 of 25 (80.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xm6hzd6ra3wasmjw2lccg6eiejjjgoqklmjxj4zvjbttgcblyg3a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:d6cd loader rat suricata
Link:
https://tria.ge/reports/220224-kydbysdgfq/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
22307822d72acfba00ebe111826675303c987b8fb7a24b7c2c309e75fb35ece5
MD5 hash:
888befa8b3bbdead20c59125e47c16e9
SHA1 hash:
8435f14a8fa6a899d856f2987e156a1947ee628a
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/95f86e60-c6f6-492b-89cd-488b9b9e3db1/
Parent samples :
f7d7da0700921b339807b5977c36fce50742c5ce87f432d357f9d3e8e683785a
924d2d9e0f1a169c6c05179783ea70801ae79bff9b36f5d831490dea219e8907
9ce82a229ef8536047a01fcd3901205df9ad5c8354746c590892503c9c617d69
bb3c7c8fd106ec093136d2c42378882252933a0a5b1374f335486733082bc1b6
SH256 hash:
0d88767c02a3b358c262cf63e9cc7c2ccb0cf4751e0ec2957b658866ff1526bb
MD5 hash:
e3406ef9001588c3e0ded0ed07adf057
SHA1 hash:
3aa6ddb2e3be5924fd3784083bab43185a998bfa
Link:
https://www.unpac.me/results/95f86e60-c6f6-492b-89cd-488b9b9e3db1/
SH256 hash:
bb3c7c8fd106ec093136d2c42378882252933a0a5b1374f335486733082bc1b6
MD5 hash:
939fd6eba33a8269d46bb669eec9add1
SHA1 hash:
750ccc54cf5d02811ce31be9a7661f0763ba2a9b
Link:
https://www.unpac.me/results/95f86e60-c6f6-492b-89cd-488b9b9e3db1/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/bb3c7c8fd106ec093136d2c42378882252933a0a5b1374f335486733082bc1b6

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Web download

Formbook

Executable exe bb3c7c8fd106ec093136d2c42378882252933a0a5b1374f335486733082bc1b6

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2045592/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/244181/

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