MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 71593432fb7a1d31d7f9f31c580aeb41189678fb7f63ff23e0c2b1fff0aec381. 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: 15


Intelligence 15 IOCs YARA 6 File information Comments
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SHA256 hash: 71593432fb7a1d31d7f9f31c580aeb41189678fb7f63ff23e0c2b1fff0aec381
SHA3-384 hash: 6e7e53403a6754241ffbf3d2434a744166303a494955811186c6a65085b813295dd534244b9da8777594a9b16be68186
SHA1 hash: 62b0da9db8062c300e063fff65a566df98b07452
MD5 hash: d5173027e7cef1bc980ea034b409f275
humanhash: march-echo-sodium-kentucky
File name:RFQ RT1120 #10324.exe
Download: download sample
Signature Formbook
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File size:853'000 bytes
First seen:2024-03-11 17:12:19 UTC
Last seen:2024-03-11 19:24:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:j+AQ32Htka5v9Dy6vekxiD7au0qI1VTafntw:j+h2mwvk6vXiD7prUTafO
TLSH T1F905018AAB60C94AD0665B764883962697669F643F33C52FE43F333ECB357C87E41121
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
379
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
71593432fb7a1d31d7f9f31c580aeb41189678fb7f63ff23e0c2b1fff0aec381.exe
Verdict:
Suspicious activity
Analysis date:
2024-03-11 17:14:37 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c1f8e592-fcd3-4f73-b38d-06445c142767

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/478617/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.9003.29526.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/65ef3ba9fc3fe20efe654eb2/reports/67050eb0-f852-467c-8347-4473dec5616b/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/71593432fb7a1d31d7f9f31c580aeb41189678fb7f63ff23e0c2b1fff0aec381
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/31889291-b339-4fec-a6ab-d774eddf2025
Result
Threat name:
FormBook, PureLog Stealer
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1406896
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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 submitted file
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 virtualization through RDTSC time measurements
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1406896 Sample: RFQ RT1120 #10324.exe Startdate: 11/03/2024 Architecture: WINDOWS Score: 100 34 www.yoursweets.online 2->34 36 www.xaqh.info 2->36 38 11 other IPs or domains 2->38 44 Snort IDS alert for network traffic 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 12 other signatures 2->50 11 RFQ RT1120 #10324.exe 3 2->11         started        signatures3 process4 signatures5 58 Injects a PE file into a foreign processes 11->58 14 RFQ RT1120 #10324.exe 11->14         started        process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 17 explorer.exe 60 1 14->17 injected process8 dnsIp9 28 www.mym-agency.com 199.102.48.45, 49743, 80 ZCOLO-LAS01US United States 17->28 30 kakevpn.com 67.223.118.135, 49748, 80 VIMRO-AS15189US United States 17->30 32 5 other IPs or domains 17->32 40 System process connects to network (likely due to code injection or exploit) 17->40 42 Uses netsh to modify the Windows network and firewall settings 17->42 21 netsh.exe 17->21         started        signatures10 process11 signatures12 52 Modifies the context of a thread in another process (thread injection) 21->52 54 Maps a DLL or memory area into another process 21->54 56 Tries to detect virtualization through RDTSC time measurements 21->56 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/71593432fb7a1d31d7f9f31c580aeb41189678fb7f63ff23e0c2b1fff0aec381
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/71593432fb7a1d31d7f9f31c580aeb41189678fb7f63ff23e0c2b1fff0aec381/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2024-03-11 11:41:56 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ofmtimx3piotdv7z6mofqcxliemjm6h3p5r76i7ayky774foyoaq._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:vr01 rat spyware stealer trojan
Link:
https://tria.ge/reports/240311-vrdz1sbb63/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
df2a9d055756f5ea356bfbfb48f9231551c3579232835cd5a0ff0b77ec2e9a7b
MD5 hash:
acab252ab1618c93c2990fe069c739b3
SHA1 hash:
1f8ccc90735799f312c1729e6a4e86415b6305b7
Detections:
FormBook
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win_formbook_w0
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win_formbook_auto
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win_formbook_g0
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Formbook
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Link:
https://www.unpac.me/results/dd747ee5-aa7b-46b0-84e1-6a3218ac0b61/
Parent samples :
8bac70d4338336e952c8d8122233b325b1a2ed7d64c74d96202cc8172c7bf824
71593432fb7a1d31d7f9f31c580aeb41189678fb7f63ff23e0c2b1fff0aec381
8926417110b368be42eddfd31b1d422c2e1d41720df7c4cfa215ba4400ca63c6
12fb27d7a59c168a82317baa0b127b8a826cc98dd108fc37fd022d8a842b06bc
ca1d2592c9726d9e3a6a57c55ac57b40d9aa3bc501393a40962afd5bd4946433
45369218b88d34e6bc3164318250c39c39dbde9b2a40b5c0d8dde6a3abf819ab
4850a766fab45d5947075658d9c6bbf4b970f0d05b082c1472b93d9a7fa3d093
SH256 hash:
06a1ae787e808d6287de314be8bec64ef2e0d3bc1bf2ea71ae268c7b8fb19e2d
MD5 hash:
91b39e533d48f5fa25ac604da90b3d8d
SHA1 hash:
f5dadf1e8fcbe64609e4cd78a27e2810f7a6e69e
Link:
https://www.unpac.me/results/dd747ee5-aa7b-46b0-84e1-6a3218ac0b61/
SH256 hash:
c8c1020fe926cc1851b73c1915ad32e2fc393dccb402782aca8f4ea6379ba84d
MD5 hash:
ef7cf89d9ec52b18a8f5b6ee49820f46
SHA1 hash:
dcf9cb9bb3f72ca4b3cc0c00b27bd9ce10b554bb
Link:
https://www.unpac.me/results/dd747ee5-aa7b-46b0-84e1-6a3218ac0b61/
SH256 hash:
c8b5ce12e5c85d77b890ee534f15de23a6ad57206ce594ec64a1d80b152b554a
MD5 hash:
288f4df0b9fa6b55052bd937ea79a104
SHA1 hash:
c53df4fee03937852f166888796280f4de47b9f2
Link:
https://www.unpac.me/results/dd747ee5-aa7b-46b0-84e1-6a3218ac0b61/
SH256 hash:
099f6f4de7fd0e122ea7a6db9bbd09bb15496b4aa1d71952b8a997c336ee80ad
MD5 hash:
816d028d1d49f22cc37c1dc668718753
SHA1 hash:
2eb797f0294addf6221d18039fb3ce33886c74ca
Link:
https://www.unpac.me/results/dd747ee5-aa7b-46b0-84e1-6a3218ac0b61/
SH256 hash:
71593432fb7a1d31d7f9f31c580aeb41189678fb7f63ff23e0c2b1fff0aec381
MD5 hash:
d5173027e7cef1bc980ea034b409f275
SHA1 hash:
62b0da9db8062c300e063fff65a566df98b07452
Detections:
INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Link:
https://www.unpac.me/results/dd747ee5-aa7b-46b0-84e1-6a3218ac0b61/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/71593432fb7a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.86
Link:
https://yomi.yoroi.company/submissions/71593432fb7a1d31d7f9f31c580aeb41189678fb7f63ff23e0c2b1fff0aec381

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_KB_CERT_7c1118cbbadc95da3752c46e47a27438
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Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
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Author:malware-lu
Rule name:PE_Digital_Certificate
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Author:albertzsigovits
Rule name:pe_imphash
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Rule name:PE_Potentially_Signed_Digital_Certificate
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Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
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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 71593432fb7a1d31d7f9f31c580aeb41189678fb7f63ff23e0c2b1fff0aec381

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/478617/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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