MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8bac70d4338336e952c8d8122233b325b1a2ed7d64c74d96202cc8172c7bf824. 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: 17


Intelligence 17 IOCs YARA 6 File information Comments
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SHA256 hash: 8bac70d4338336e952c8d8122233b325b1a2ed7d64c74d96202cc8172c7bf824
SHA3-384 hash: 4533a46940ea6d8a0c6d337cc6d6647704c3333bdda354acc5b9eb72d3eb711a50cc4924ab14bc55f11cfc8fd1e735e8
SHA1 hash: 68f20930be281141e754be4e28dbdc6570ae286b
MD5 hash: 630e4616791f80a65c404cb53bd6d13f
humanhash: vermont-sweet-xray-hamper
File name:RFQ RT1120 #10324.exe
Download: download sample
Signature Formbook
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File size:821'256 bytes
First seen:2024-03-11 02:12:09 UTC
Last seen:2024-03-11 03:47:52 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 12288:jI31uTMGUdLPpXpZt0BmxKnF/kP9UFOrXrRCIuVDZkwDJpIYiBlnyhWBsLI8kR:RUdLPleTnWKOr78bV50BVyhWBh
TLSH T1190502F1F998B643D1A22BB98B40C46456712C7E28A5C7CDE9A47EDCBCB6708425F903
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
374
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
8bac70d4338336e952c8d8122233b325b1a2ed7d64c74d96202cc8172c7bf824.exe
Verdict:
Malicious activity
Analysis date:
2024-03-11 02:13:30 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/2ee2e14e-a927-4353-9b7c-27e69c237291

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/478455/
Detection(s):
SecuriteInfo.com.W32.MSIL_Kryptik.KQK.gen.Eldorado.6184.16231.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/65ee68af757c624818a9d670/reports/6f93be90-1cbe-4a92-b557-f9929fb8045d/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/8bac70d4338336e952c8d8122233b325b1a2ed7d64c74d96202cc8172c7bf824
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/32cee7b1-142a-402d-83db-9ff54f17aa8a
Result
Threat name:
FormBook, PureLog Stealer
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1406286
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
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1406286 Sample: RFQ RT1120 #10324.exe Startdate: 11/03/2024 Architecture: WINDOWS Score: 100 30 www.topdeals.biz 2->30 32 www.kidscircle.shop 2->32 34 11 other IPs or domains 2->34 42 Snort IDS alert for network traffic 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 12 other signatures 2->48 11 RFQ RT1120 #10324.exe 3 2->11         started        signatures3 process4 signatures5 56 Injects a PE file into a foreign processes 11->56 14 RFQ RT1120 #10324.exe 11->14         started        17 RFQ RT1120 #10324.exe 11->17         started        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 56 1 14->19 injected process8 dnsIp9 36 f053cdn.aaasfjyt.com 154.219.3.63, 49749, 80 RBNETRBNETCoLtdJP Seychelles 19->36 38 www.flavorfog.online 35.214.118.179, 49746, 80 GOOGLE-2US United States 19->38 40 4 other IPs or domains 19->40 50 System process connects to network (likely due to code injection or exploit) 19->50 23 msiexec.exe 19->23         started        signatures10 process11 signatures12 52 Modifies the context of a thread in another process (thread injection) 23->52 54 Maps a DLL or memory area into another process 23->54 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8bac70d4338336e952c8d8122233b325b1a2ed7d64c74d96202cc8172c7bf824
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/8bac70d4338336e952c8d8122233b325b1a2ed7d64c74d96202cc8172c7bf824/
Threat name:
Win32.Downloader.FormBook
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Status:
Malicious
First seen:
2024-03-10 23:59:40 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
16 of 23 (69.57%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rowhbvbtqm3osuwi3ajcem5tewy2f3l5mtdu3fraftebold37asa._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-cneg9shh64/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
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/ce4e6672-ea5d-4ed6-adab-d656e5a44a89/
Parent samples :
8bac70d4338336e952c8d8122233b325b1a2ed7d64c74d96202cc8172c7bf824
71593432fb7a1d31d7f9f31c580aeb41189678fb7f63ff23e0c2b1fff0aec381
8926417110b368be42eddfd31b1d422c2e1d41720df7c4cfa215ba4400ca63c6
12fb27d7a59c168a82317baa0b127b8a826cc98dd108fc37fd022d8a842b06bc
ca1d2592c9726d9e3a6a57c55ac57b40d9aa3bc501393a40962afd5bd4946433
45369218b88d34e6bc3164318250c39c39dbde9b2a40b5c0d8dde6a3abf819ab
4850a766fab45d5947075658d9c6bbf4b970f0d05b082c1472b93d9a7fa3d093
SH256 hash:
06a1ae787e808d6287de314be8bec64ef2e0d3bc1bf2ea71ae268c7b8fb19e2d
MD5 hash:
91b39e533d48f5fa25ac604da90b3d8d
SHA1 hash:
f5dadf1e8fcbe64609e4cd78a27e2810f7a6e69e
Link:
https://www.unpac.me/results/ce4e6672-ea5d-4ed6-adab-d656e5a44a89/
SH256 hash:
e3dec77921c48a7907a0ba633eec9f272d1d64645319b560cdc3764fc149ecc1
MD5 hash:
efee136433bb477b572b1007e8bded63
SHA1 hash:
6fdbe5f9c60f3644aae0fab4441ee5b7aeef693b
Link:
https://www.unpac.me/results/ce4e6672-ea5d-4ed6-adab-d656e5a44a89/
SH256 hash:
4c24e817caa1d171b72d818bcbd4dfd92aff369510ec26a733fdd7449543bb72
MD5 hash:
b8bed81c958e96dee919a9aa9c215165
SHA1 hash:
0feae0c63992f6407938d593a14feda24915a3e0
Link:
https://www.unpac.me/results/ce4e6672-ea5d-4ed6-adab-d656e5a44a89/
SH256 hash:
8e1f4401a319ed5179d9c764d965c68c5a6b03a94d4b95368ace35457d059e06
MD5 hash:
2ff299cb31547f892645e38afb769de9
SHA1 hash:
04b058cc07fb9d114c7ff41bb333b5b661a60bcc
Link:
https://www.unpac.me/results/ce4e6672-ea5d-4ed6-adab-d656e5a44a89/
SH256 hash:
8bac70d4338336e952c8d8122233b325b1a2ed7d64c74d96202cc8172c7bf824
MD5 hash:
630e4616791f80a65c404cb53bd6d13f
SHA1 hash:
68f20930be281141e754be4e28dbdc6570ae286b
Detections:
INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Link:
https://www.unpac.me/results/ce4e6672-ea5d-4ed6-adab-d656e5a44a89/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8bac70d43383/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.50
Link:
https://yomi.yoroi.company/submissions/8bac70d4338336e952c8d8122233b325b1a2ed7d64c74d96202cc8172c7bf824

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 8bac70d4338336e952c8d8122233b325b1a2ed7d64c74d96202cc8172c7bf824

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/478455/

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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