MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8761aac733416ea826d721768139fb0cd965dd0ddb39be05874bbef5969498b. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
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SHA256 hash: c8761aac733416ea826d721768139fb0cd965dd0ddb39be05874bbef5969498b
SHA3-384 hash: 8df07a09127ad06959de2da0f2793f19be7f1c8623a31f9042568631b1a7de1c29ee86d6af3f1eaeed99b1182f0e616e
SHA1 hash: e5ba0b04ebca63b4b86217465436138e02619186
MD5 hash: 90098f1344688dd290aff40381e8e56f
humanhash: princess-thirteen-seventeen-mike
File name:90098f1344688dd290aff40381e8e56f.exe
Download: download sample
Signature Formbook
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File size:777'216 bytes
First seen:2023-07-24 15:29:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:h1vJRBusyW935rTrc+Uqv9bYxjv3TOTaXXckvLGW2FQ6ahuIle:fFuK9ZGqFUxjyMAeTne
TLSH T12BF412253779AB56D1B8BBF1D6A0500543B2A5982833E34C4DF530DB5E22FC1AB90BE7
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
276
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/431263/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2192.7668.10233.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c8761aac733416ea826d721768139fb0cd965dd0ddb39be05874bbef5969498b
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/9874ef17-b3ce-47cf-b8a2-16be1ab5a102
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1278432
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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 FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1278432 Sample: 5EeJpAcI43.exe Startdate: 24/07/2023 Architecture: WINDOWS Score: 100 33 www.prestigesmp.online 2->33 41 Snort IDS alert for network traffic 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 7 other signatures 2->47 11 5EeJpAcI43.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\5EeJpAcI43.exe.log, ASCII 11->31 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 59 Injects a PE file into a foreign processes 11->59 15 5EeJpAcI43.exe 11->15         started        18 5EeJpAcI43.exe 11->18         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 20 explorer.exe 1 1 15->20 injected process9 dnsIp10 35 www.showshoe.info 203.161.55.145, 49700, 80 VNPT-AS-VNVNPTCorpVN Malaysia 20->35 37 www.homerevamps.today 188.114.96.7, 49701, 80 CLOUDFLARENETUS European Union 20->37 39 192.168.2.1 unknown unknown 20->39 49 System process connects to network (likely due to code injection or exploit) 20->49 24 raserver.exe 20->24         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 24->51 53 Maps a DLL or memory area into another process 24->53 55 Tries to detect virtualization through RDTSC time measurements 24->55 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/c8761aac733416ea826d721768139fb0cd965dd0ddb39be05874bbef5969498b/
Threat name:
Win32.Trojan.Swotter
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Status:
Malicious
First seen:
2023-07-24 12:50:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
19 of 37 (51.35%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zb3bvldtgqlovatnoilwqe47wdgzmxoq3wzzxycyos566wljjgfq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:4hc5 rat spyware stealer trojan
Link:
https://tria.ge/reports/230724-sxgxrafd7t/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
4c73a4b631dd55523e1d0d013e5650d80b12062e5642f8021907199af5376953
MD5 hash:
080cb33bd065324ef8edc668e1992ee2
SHA1 hash:
90439e17c3f0d1f50cafe6d3ff9f2f1ac4c50d88
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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Link:
https://www.unpac.me/results/6ca32dbb-ce58-4d76-8033-ae3abf8d7452/
Parent samples :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 hash:
53f2ad060cf771aa4f197df5789cee95959480c244a0b392bb450c8ce7311d77
MD5 hash:
37e82d3e2864e27b34f5fbacaea759c3
SHA1 hash:
a87024a466e052bff09a170bb8c6f374f6c84c32
Link:
https://www.unpac.me/results/6ca32dbb-ce58-4d76-8033-ae3abf8d7452/
SH256 hash:
3dedcd827d112859c1d147ed321e79ebec3a0cbb9cd6cf0538eabf879301486f
MD5 hash:
dda34440228b36ca7ea5f00423253a71
SHA1 hash:
43ff6ed22bf082609e7e0101a50241336fdbf83b
Link:
https://www.unpac.me/results/6ca32dbb-ce58-4d76-8033-ae3abf8d7452/
SH256 hash:
e6f6d4537b5a06dcaa639efb0f59ad138130ef4c513244de3546a5738c0ebed3
MD5 hash:
04c1c72fcdab1c3639a9bedb97400004
SHA1 hash:
0e02ae80df4243f81292cbfbed7037f171aaf544
Link:
https://www.unpac.me/results/6ca32dbb-ce58-4d76-8033-ae3abf8d7452/
SH256 hash:
c8761aac733416ea826d721768139fb0cd965dd0ddb39be05874bbef5969498b
MD5 hash:
90098f1344688dd290aff40381e8e56f
SHA1 hash:
e5ba0b04ebca63b4b86217465436138e02619186
Link:
https://www.unpac.me/results/6ca32dbb-ce58-4d76-8033-ae3abf8d7452/
Malware family:
XLoader
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c8761aac7334/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/c8761aac733416ea826d721768139fb0cd965dd0ddb39be05874bbef5969498b

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
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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.

Web download

Formbook

Executable exe c8761aac733416ea826d721768139fb0cd965dd0ddb39be05874bbef5969498b

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/431263/
  
URLhaus
https://urlhaus.abuse.ch/url/2681683/
  
Delivery method
Distributed via web download

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