MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 624478976e937a86f57bea32fdd88f38cd1019ce3a08b324a116a118953a070b. 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: 7


Intelligence 7 IOCs YARA 18 File information Comments
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SHA256 hash: 624478976e937a86f57bea32fdd88f38cd1019ce3a08b324a116a118953a070b
SHA3-384 hash: 135cb20db3459ae97cc246030587018390b91fbdf64bdbcdd7573deb08cc9369f2441ee5532fd6212433f0bf0ca491b4
SHA1 hash: 6ce36270cd8cdded26daeac51c4ea702cd5dda37
MD5 hash: 56656f1b125a70fa99a9f47d2a62cf1e
humanhash: six-shade-pip-pasta
File name:RFQ2412600.arj
Download: download sample
Signature Formbook
Create hunting rule
File size:623'422 bytes
First seen:2024-01-26 16:57:24 UTC
Last seen:Never
File type: arj
MIME type:application/x-rar
ssdeep 12288:ZHHnJVPZ9jzlf7af8Afef5sO/l3vJYuHP3XeSuzo9nA5gloksotghYXbo:jVPZllOefC6l3vmieSuz2nAWoUtghYM
TLSH T1A7D4237A36A4B4E5859F2E4D5CDAE3CA5FA4E8C32E2C4CF8E5D580EE66C15106C331E1
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Reporter cocaman
Tags:arj FormBook QUOTATION RFQ


Avatar
cocaman
Malicious email (T1566.001)
From: ""Grace Lia" <no-reply@mail.com>" (likely spoofed)
Received: "from 72.11.142.204.static.quadranet.com (unknown [72.11.142.204]) "
Date: "26 Jan 2024 08:57:10 -0800"
Subject: "Request for Quotation - PR#2412300"
Attachment: "RFQ2412600.arj"

Intelligence

File Origin
# of uploads :
1
# of downloads :
102
Origin country :
CH CH
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:RFQ2412600.exe
File size:648'704 bytes
SHA256 hash: 6271c329c4f40cf98e90cfa7016bcf533be22f66c7e20446ea721a9a475e2325
MD5 hash: b117f22372aa1e2991a4069a9275a27e
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65b3e49bbc91f83c80690524/reports/72e8ea7d-65a0-47b9-9bf1-49075cf8c399/overview
Verdict:
Suspicious
Labled as:
Mal/DrodRar
Link:
https://www.hybrid-analysis.com/sample/624478976e937a86f57bea32fdd88f38cd1019ce3a08b324a116a118953a070b
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.
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/624478976e937a86f57bea32fdd88f38cd1019ce3a08b324a116a118953a070b/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-01-26 11:11:25 UTC
File Type:
Binary (Archive)
Extracted files:
7
AV detection:
18 of 24 (75.00%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mjchrf3osn5in5l35izp3wephdgragoohielgjfbc2qrrfj2a4fq._file
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/624478976e937a86f57bea32fdd88f38cd1019ce3a08b324a116a118953a070b

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:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
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Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
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Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
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Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
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Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:NET
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Author:malware-lu
Rule name:NETexecutableMicrosoft
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Author:malware-lu
Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security
Rule name:win_agent_tesla_g2
Create hunting rule
Author:Daniel Plohmann <daniel.plohmann@fkie.fraunhofer.de>

File information

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

Malspam

Formbook

arj 624478976e937a86f57bea32fdd88f38cd1019ce3a08b324a116a118953a070b

(this sample)

Formbook

Executable exe 6271c329c4f40cf98e90cfa7016bcf533be22f66c7e20446ea721a9a475e2325

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 6271c329c4f40cf98e90cfa7016bcf533be22f66c7e20446ea721a9a475e2325
  
Dropping
Formbook
  
Dropping
MD5 b117f22372aa1e2991a4069a9275a27e

Comments