MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7a4e7d899c691004be7af69a5d3006c82d268a78259c8c1b7348bcb20a9da9f. 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: 16


Intelligence 16 IOCs YARA 5 File information Comments
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SHA256 hash: a7a4e7d899c691004be7af69a5d3006c82d268a78259c8c1b7348bcb20a9da9f
SHA3-384 hash: 62c62543c2732ecc82172b1fb6ba9854aff401847c919f2b1890cbde148a0b1c71fa6af86a77ccb26ce67e69eb25f8ef
SHA1 hash: 736f57a004278a6fcb674cee929dd8d618ea7cb9
MD5 hash: 467abc3ad4d87ca17ddffa0596410018
humanhash: west-kentucky-fourteen-avocado
File name:facture.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:795'136 bytes
First seen:2022-06-13 11:11:39 UTC
Last seen:2022-06-13 12:12:11 UTC
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:c3LUM1H/pWTRs/iqINvH22qla5w/yXbx+uYdeNOOn8IZFsg84:6rRCH0MW/IbxdYG84
TLSH T1EB057B6D67568D9EED14E3B1CEB32B601648C6B65C9A9317B398371ED0BB7E82D00703
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
264
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
facture.exe
Verdict:
Malicious activity
Analysis date:
2022-06-13 23:04:12 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/21962985-88ec-4bee-8253-edea5f7ba6f0

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/279363/
Detection(s):
Win.Trojan.EmbeddedDotNetBinary-9940868-0
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Win.Trojan.EmbeddedReversedDLL-9940922-0
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Sending an HTTP GET request
Sending a custom TCP request
Creating a file
Launching cmd.exe command interpreter
Searching for synchronization primitives
Сreating synchronization primitives
Setting browser functions hooks
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/62a71bc573b91c38f68a2e46/reports/1e73ff7c-bcc8-4e74-bb4b-9e5f692ff7c3/overview
Result
Verdict:
UNKNOWN
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/42f837bb-6577-40db-9ca7-ab69ad068d6d
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1011954
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 domain / URL
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
Snort IDS alert for network traffic
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 Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 644451 Sample: facture.exe Startdate: 13/06/2022 Architecture: WINDOWS Score: 100 41 Snort IDS alert for network traffic 2->41 43 Multi AV Scanner detection for domain / URL 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 9 other signatures 2->47 10 facture.exe 1 2->10         started        process3 file4 33 C:\Users\user\AppData\...\facture.exe.log, ASCII 10->33 dropped 13 InstallUtil.exe 10->13         started        16 InstallUtil.exe 10->16         started        18 powershell.exe 15 10->18         started        process5 signatures6 59 Modifies the context of a thread in another process (thread injection) 13->59 61 Maps a DLL or memory area into another process 13->61 63 Sample uses process hollowing technique 13->63 65 Queues an APC in another process (thread injection) 13->65 20 explorer.exe 13->20 injected 67 Tries to detect virtualization through RDTSC time measurements 16->67 24 conhost.exe 18->24         started        process7 dnsIp8 35 www.latexbbs.com 185.107.56.197, 49942, 80 NFORCENL Netherlands 20->35 37 www.oxidizer.xyz 3.64.163.50, 49938, 80 AMAZON-02US United States 20->37 39 4 other IPs or domains 20->39 49 System process connects to network (likely due to code injection or exploit) 20->49 51 Performs DNS queries to domains with low reputation 20->51 26 cmd.exe 20->26         started        signatures9 process10 signatures11 53 Modifies the context of a thread in another process (thread injection) 26->53 55 Maps a DLL or memory area into another process 26->55 57 Tries to detect virtualization through RDTSC time measurements 26->57 29 cmd.exe 1 26->29         started        process12 process13 31 conhost.exe 29->31         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a7a4e7d899c691004be7af69a5d3006c82d268a78259c8c1b7348bcb20a9da9f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-06-13 11:12:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=u6sopwezy2iqas7hv5u2luyansbne2fhqjm4rqnxgsf4wifj3kpq._file
Verdict:
malicious
Label(s):
formbook
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masslogger
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:d23n rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220613-nat7cafghl/
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
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
0466e3a40ccdf42cbb1de109aa3e0aee3f2cc910be1da3198d9cddd1b5783358
MD5 hash:
2205b8448fef03808d29327e94a4c5f5
SHA1 hash:
d9f6b0a71e0312da2033a613546f68b183b5d196
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/75980a97-8636-461c-9927-7b418001c409/
Parent samples :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 hash:
a3fb46fcde1c875085d2b62044e3c9b16389530176a4d50cf8dffef82e8ff6a7
MD5 hash:
ff955712f3ea1012b690eb4b3da3a336
SHA1 hash:
75bf2e26f5cf547e6bd260edd7a5dadaa9de4af9
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/75980a97-8636-461c-9927-7b418001c409/
SH256 hash:
9f01d9f2ed07e630ec078efa5d760762c3c8ad3b06e9e8a9062a37d63d57b026
MD5 hash:
9fbb8cec55b2115c00c0ba386c37ce62
SHA1 hash:
e2378a1c22c35e40fd1c3e19066de4e33b50f24a
Link:
https://www.unpac.me/results/75980a97-8636-461c-9927-7b418001c409/
SH256 hash:
973ea87f960ae489e088415913533b6843ba2542525ebb04c3760c4c3c5eecf6
MD5 hash:
9ba2de701de32f0cbaa2eeab8c8f3612
SHA1 hash:
487d490a695ed311ca722d569d1ed75fd683cd4c
Link:
https://www.unpac.me/results/75980a97-8636-461c-9927-7b418001c409/
SH256 hash:
a7a4e7d899c691004be7af69a5d3006c82d268a78259c8c1b7348bcb20a9da9f
MD5 hash:
467abc3ad4d87ca17ddffa0596410018
SHA1 hash:
736f57a004278a6fcb674cee929dd8d618ea7cb9
Link:
https://www.unpac.me/results/75980a97-8636-461c-9927-7b418001c409/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a7a4e7d899c6/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/a7a4e7d899c691004be7af69a5d3006c82d268a78259c8c1b7348bcb20a9da9f

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:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Typical_Malware_String_Transforms
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research

File information

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

Malspam

Formbook

Executable exe a7a4e7d899c691004be7af69a5d3006c82d268a78259c8c1b7348bcb20a9da9f

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/279363/

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