MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fb3d959898083e1cccc4e905b59121f9aa46519668bacf0ecaa2aab92eabdb20. 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: 12


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

SHA256 hash: fb3d959898083e1cccc4e905b59121f9aa46519668bacf0ecaa2aab92eabdb20
SHA3-384 hash: bcb72df78e7e21969bf5144e582b7b8e371b28259db40c1eaa677f025d20e369910f4633493aec56a79e5d604cea04f9
SHA1 hash: 9f70cbd3743ec52d46620eeffd0c5af40b88149a
MD5 hash: 7c951002f53a02f5e06e9583ff3c44bb
humanhash: lima-blue-east-angel
File name:ORDEN DE COTIZACIÓN.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:727'552 bytes
First seen:2021-09-04 13:51:57 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 6144:lrFJLgGmeMwHZY6R8rPWSXxhF12B9k27KFbGvGMK1ob3zC2d0rJ/YQjPreSwOX:lce7HZojWMl12B9k22bkX322dU2QjPf
Threatray 8'960 similar samples on MalwareBazaar
TLSH T1A0F43D3E28FE23279176C7D5CBE58923F6D498AF3133A96567D743664302A4634C322E
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
309
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ORDEN DE COTIZACIÓN.exe
Verdict:
Malicious activity
Analysis date:
2021-09-04 13:54:20 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/868c7853-f87d-4610-8f9c-43ba1f1b5922

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.generic.ml.31368.7615.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Deleting a recently created file
Launching a process
Creating a process with a hidden window
Creating a file
Launching cmd.exe command interpreter
Setting browser functions hooks
Creating a process from a recently created file
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Unauthorized injection to a system process
Unauthorized injection to a browser process
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a607356a-0994-48cb-9b75-f9ebbc7cfab6
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/845266
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
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 dropped file
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 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: 477697 Sample: ORDEN DE COTIZACI#U00d3N.exe Startdate: 04/09/2021 Architecture: WINDOWS Score: 100 38 www.daniela.red 2->38 54 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 13 other signatures 2->60 10 ORDEN DE COTIZACI#U00d3N.exe 7 2->10         started        signatures3 process4 file5 30 C:\Users\user\AppData\...\pAgfhIkkQHK.exe, PE32 10->30 dropped 32 C:\Users\...\pAgfhIkkQHK.exe:Zone.Identifier, ASCII 10->32 dropped 34 C:\Users\user\AppData\Local\...\tmp3689.tmp, XML 10->34 dropped 36 C:\Users\...\ORDEN DE COTIZACI#U00d3N.exe.log, ASCII 10->36 dropped 13 RegSvcs.exe 10->13         started        16 schtasks.exe 1 10->16         started        process6 signatures7 62 Modifies the context of a thread in another process (thread injection) 13->62 64 Maps a DLL or memory area into another process 13->64 66 Sample uses process hollowing technique 13->66 68 2 other signatures 13->68 18 wlanext.exe 13->18         started        21 explorer.exe 13->21 injected 24 conhost.exe 16->24         started        process8 dnsIp9 46 Modifies the context of a thread in another process (thread injection) 18->46 48 Maps a DLL or memory area into another process 18->48 50 Tries to detect virtualization through RDTSC time measurements 18->50 26 cmd.exe 1 18->26         started        40 www.ramseyedk12.com 21->40 42 www.constructioncleanup.pro 21->42 44 constructioncleanup.pro 34.102.136.180, 49728, 80 GOOGLEUS United States 21->44 52 System process connects to network (likely due to code injection or exploit) 21->52 signatures10 process11 process12 28 conhost.exe 26->28         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fb3d959898083e1cccc4e905b59121f9aa46519668bacf0ecaa2aab92eabdb20/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-04 08:51:54 UTC
AV detection:
15 of 37 (40.54%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7m6zlgeyba7bztge5ec3lejb7gvemumwnc5m6dwkukvlslvl3mqa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
361b0f41c92e2156b12838e48d3180831f211f605dc68d46532ee49eaa4a0638
Formbook
8674688f673421c41dd39734f690c3b1b0aa8aceb5adeb057cf8b21d8f2e41a6
Formbook
ab2f8c8398a0233c6d9b0308b3499e7cababf65a1ec913c4a88c895edaa822c7
Formbook
ad4bb72b8e2dfc1d1e4423c9a0983aa98dafff2ea460d1fabe666b6daaafb585
Formbook
b9c7b6e3537f8278ce7338f46ec1b658bb0ed0d9cf5b4c04e8d6427ded11f7b2
Formbook
+ 8'950 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:vd9n rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/210904-q6egwahddj/
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 UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.constructioncleanup.pro/vd9n/
Unpacked files
SH256 hash:
9a8075c5d78a69661c1ed07d1dc6a8f76acc5edd1d900dec908fd95f3e00cdc4
MD5 hash:
7fc4eef3c07b4890608859686bb43c97
SHA1 hash:
05f2d020d59a10ace5506ec8f6a1a5377b3ab155
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/14d39eb8-ed9a-48c5-be37-d1835d6410f9/
Parent samples :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 hash:
c0ee1071e444f415f8b62856a0896f3b22e563f1bb4f03d14142583efe49a565
MD5 hash:
29db2e114b88ae1f6a00c9aa71690043
SHA1 hash:
ec82db71443556a5b320357b0b8b09e70ec1db9c
Link:
https://www.unpac.me/results/14d39eb8-ed9a-48c5-be37-d1835d6410f9/
SH256 hash:
9d6fb5ced23d2f64a06da4121ce4e3e44cd8f91441111e3dab741bdecbbd2a29
MD5 hash:
ad3341fc61b5a24d04b276e9e5a139b6
SHA1 hash:
41cd0eabd57b7142762dac20bbdc62454f049205
Link:
https://www.unpac.me/results/14d39eb8-ed9a-48c5-be37-d1835d6410f9/
SH256 hash:
fb3d959898083e1cccc4e905b59121f9aa46519668bacf0ecaa2aab92eabdb20
MD5 hash:
7c951002f53a02f5e06e9583ff3c44bb
SHA1 hash:
9f70cbd3743ec52d46620eeffd0c5af40b88149a
Link:
https://www.unpac.me/results/14d39eb8-ed9a-48c5-be37-d1835d6410f9/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/fb3d95989808/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/fb3d959898083e1cccc4e905b59121f9aa46519668bacf0ecaa2aab92eabdb20

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 fb3d959898083e1cccc4e905b59121f9aa46519668bacf0ecaa2aab92eabdb20

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment

Comments