MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c7ea020c54d4ce9a629d57feb15e38fac8457b14221386111ef022735e375d13. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c7ea020c54d4ce9a629d57feb15e38fac8457b14221386111ef022735e375d13
SHA3-384 hash: 3fa3ce6b96b8b26e843ecd42db73c93ca4d56da4da2a6958155ed7b95ba79ac6b331fbe9c093c7c86d9dd55f290f5449
SHA1 hash: ce4fb442756c8335955449f7915c64d8a6cc47c2
MD5 hash: f98bb1049768e831b45d33823c641fcb
humanhash: winter-lithium-fillet-neptune
File name:f98bb1049768e831b45d33823c641fcb.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:625'152 bytes
First seen:2021-09-28 06:28:02 UTC
Last seen:2021-09-28 09:41:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:2zWzSNi+hBr7IUANuinn6Ba3tpEOsTyhCu2KFEDEZZ:2jNi+hBr8UANuine03EOcoCl3oZ
TLSH T1DED49DDE1EB457DBFB1E01F8F678278813BA9024D99BF2C2CA45B0B311367685920DD6
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
147
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
f98bb1049768e831b45d33823c641fcb.exe
Verdict:
Suspicious activity
Analysis date:
2021-09-28 06:29:09 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/d0e8ad54-e8da-4dd5-a73d-c8abc8aff245

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/192394/
Detection(s):
SecuriteInfo.com.Scr.Malcodegdn30.14006.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/036f8e45-36b3-40c0-bd19-428804638400
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/859589
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 492021 Sample: TgbHWecXSn.exe Startdate: 28/09/2021 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->38 40 Multi AV Scanner detection for domain / URL 2->40 42 Found malware configuration 2->42 44 11 other signatures 2->44 10 TgbHWecXSn.exe 3 2->10         started        process3 file4 30 C:\Users\user\AppData\...\TgbHWecXSn.exe.log, ASCII 10->30 dropped 56 Tries to detect virtualization through RDTSC time measurements 10->56 14 TgbHWecXSn.exe 10->14         started        17 TgbHWecXSn.exe 10->17         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 Queues an APC in another process (thread injection) 14->64 19 explorer.exe 14->19 injected process8 dnsIp9 32 vectobal.com 160.153.136.3, 49812, 80 GODADDY-AMSDE United States 19->32 34 www.waterproofselection.com 19->34 36 www.vectobal.com 19->36 46 System process connects to network (likely due to code injection or exploit) 19->46 23 svchost.exe 19->23         started        signatures10 process11 signatures12 48 Self deletion via cmd delete 23->48 50 Modifies the context of a thread in another process (thread injection) 23->50 52 Maps a DLL or memory area into another process 23->52 54 Tries to detect virtualization through RDTSC time measurements 23->54 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c7ea020c54d4ce9a629d57feb15e38fac8457b14221386111ef022735e375d13/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-28 06:28:08 UTC
AV detection:
17 of 45 (37.78%)
Threat level:
  5/5
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:bckt rat spyware stealer trojan
Link:
https://tria.ge/reports/210928-g8cxdsahep/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.picnictablecompany.com/bckt/
Unpacked files
SH256 hash:
7d7501fb22cb18f10bfac1575359ff3a7e9ba934985a8184d02e5a26a3c4801d
MD5 hash:
4c1f6f8f4bf9678c49d6ea74baca3576
SHA1 hash:
3209fc3defa6d9eeb8ed06fe8cbcf6a69c84c782
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/b6937b86-d2e5-496f-b94c-51b51fe4ea68/
Parent samples :
7024147e75938acd54b804df172c63b57c794e1980632c5f8190ae1e9d0da82a
4c5887639c1dfcc0349690d98e9c8034029a6fa2f2e6bdbba96371bf23ce3301
2ac830fd4c5c4c3522b5cb9983edc13f2580b932875bc9daeb02633b8829fb3b
043b45f9d94820186d7324c5f6e0fd7661de15ad29104fd43294e2f3839efa06
92c90d735148f7fd056e2d53bf44239f3fdab6b029e78d3ed6077d9c7f40aef2
c7ea020c54d4ce9a629d57feb15e38fac8457b14221386111ef022735e375d13
5be742e9644f86ef1d407e5b3e85dff6211561e6dbf9c9fc85b0c5289b899979
SH256 hash:
7f81cbb6b4be87895de8153070dbf7048dbd9bd85656932e5df5972aba46175a
MD5 hash:
c9fe2e6dd65cb6f97bae5409514e0ea1
SHA1 hash:
9e0b581973dd38f850ab553db5c9d8734aace54c
Link:
https://www.unpac.me/results/b6937b86-d2e5-496f-b94c-51b51fe4ea68/
SH256 hash:
695472b1c73cb95a964fed0c139e6f938bed3785dcca74f80ab49ca32901a1e7
MD5 hash:
5de9fa5597eec8440952fe7b32135d6b
SHA1 hash:
86e0ab954c0b85448e0bd33d0de6e5c8dcc188df
Link:
https://www.unpac.me/results/b6937b86-d2e5-496f-b94c-51b51fe4ea68/
SH256 hash:
6a671abf66304301602b4afd0902840bc3915455cffc58d8916eaa693abe33ec
MD5 hash:
681eca96e4e7b513317178dc7065ef39
SHA1 hash:
24af82015bc57d125f1ccb759840118b2283d1dc
Link:
https://www.unpac.me/results/b6937b86-d2e5-496f-b94c-51b51fe4ea68/
SH256 hash:
c7ea020c54d4ce9a629d57feb15e38fac8457b14221386111ef022735e375d13
MD5 hash:
f98bb1049768e831b45d33823c641fcb
SHA1 hash:
ce4fb442756c8335955449f7915c64d8a6cc47c2
Link:
https://www.unpac.me/results/b6937b86-d2e5-496f-b94c-51b51fe4ea68/
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/c7ea020c54d4ce9a629d57feb15e38fac8457b14221386111ef022735e375d13

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.

Web download

Formbook

Executable exe c7ea020c54d4ce9a629d57feb15e38fac8457b14221386111ef022735e375d13

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1583603/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1599707/
Cape
Cape
https://www.capesandbox.com/analysis/192394/

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