MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a0cfdb287a571e7585132886bc8a0ad8de4427eb4b2bad5e650d5921e4834e9e. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
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SHA256 hash: a0cfdb287a571e7585132886bc8a0ad8de4427eb4b2bad5e650d5921e4834e9e
SHA3-384 hash: f245eebf362a82b8ff81904ee3fde0290d17b998976c154cf6b2c9c8edb0ef36c6becf8269f4794260649ba0d44c268a
SHA1 hash: b122884a60b3f1830b892478fb0f08b44018b982
MD5 hash: c1e2ae1a256c5f04180bfc588a8ba84e
humanhash: ten-tennis-sierra-oregon
File name:SecuriteInfo.com.W32.AIDetectNet.01.23466.21391
Download: download sample
Signature Formbook
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File size:77'312 bytes
First seen:2022-07-18 13:37:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 768:xoRyfMzdVxf6666666oVZPzSNxWP9VUAKQ/e+/5fYxNSk6666666O2+/5:mkV
TLSH T14773B97251F2A4D9FAEA8DB7AC158144BEEB9C18CD12801EE05931F51673BD8C24A4FF
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 10808a8c8c8a8010 (77 x Formbook, 51 x AgentTesla, 44 x RemcosRAT)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
250
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/291584/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.23466.21391.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Creating a file
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62d562bb80dba4f80a2349f7/reports/cfdd4af9-3cb3-435d-8fd1-d37850b5113b/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4d551dfb-1a7b-49ef-9bfd-03cabb465fd9
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1035774
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Encrypted powershell cmdline option found
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 668268 Sample: SecuriteInfo.com.W32.AIDete... Startdate: 18/07/2022 Architecture: WINDOWS Score: 100 68 Malicious sample detected (through community Yara rule) 2->68 70 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->70 72 Yara detected FormBook 2->72 74 6 other signatures 2->74 10 SecuriteInfo.com.W32.AIDetectNet.01.23466.exe 16 7 2->10         started        process3 dnsIp4 66 aynalfahadboursa.com 66.235.200.146, 443, 49729, 49771 CLOUDFLARENETUS United States 10->66 54 C:\Users\user\AppData\Roaming\...\Bwrjt.exe, PE32 10->54 dropped 56 C:\Users\user\...\Bwrjt.exe:Zone.Identifier, ASCII 10->56 dropped 58 SecuriteInfo.com.W...et.01.23466.exe.log, ASCII 10->58 dropped 96 Encrypted powershell cmdline option found 10->96 98 Writes to foreign memory regions 10->98 100 Allocates memory in foreign processes 10->100 102 Injects a PE file into a foreign processes 10->102 15 InstallUtil.exe 10->15         started        18 powershell.exe 15 10->18         started        file5 signatures6 process7 signatures8 106 Modifies the context of a thread in another process (thread injection) 15->106 108 Maps a DLL or memory area into another process 15->108 110 Sample uses process hollowing technique 15->110 112 2 other signatures 15->112 20 explorer.exe 15->20 injected 22 conhost.exe 18->22         started        process9 process10 24 Bwrjt.exe 14 4 20->24         started        28 Bwrjt.exe 3 20->28         started        30 msiexec.exe 20->30         started        32 control.exe 20->32         started        dnsIp11 60 aynalfahadboursa.com 24->60 82 Machine Learning detection for dropped file 24->82 84 Encrypted powershell cmdline option found 24->84 86 Writes to foreign memory regions 24->86 34 InstallUtil.exe 24->34         started        37 powershell.exe 24->37         started        62 192.168.2.1 unknown unknown 28->62 64 aynalfahadboursa.com 28->64 88 Allocates memory in foreign processes 28->88 90 Injects a PE file into a foreign processes 28->90 39 InstallUtil.exe 28->39         started        41 powershell.exe 28->41         started        92 Maps a DLL or memory area into another process 30->92 43 cmd.exe 30->43         started        94 Tries to detect virtualization through RDTSC time measurements 32->94 signatures12 process13 signatures14 76 Modifies the context of a thread in another process (thread injection) 34->76 78 Maps a DLL or memory area into another process 34->78 80 Sample uses process hollowing technique 34->80 45 chkdsk.exe 34->45         started        48 conhost.exe 37->48         started        50 conhost.exe 41->50         started        52 conhost.exe 43->52         started        process15 signatures16 104 Tries to detect virtualization through RDTSC time measurements 45->104
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a0cfdb287a571e7585132886bc8a0ad8de4427eb4b2bad5e650d5921e4834e9e/
Threat name:
Win32.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-07-18 13:38:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=udh5wkd2k4phlbitfcdlzcqk3dpeij7ljmv22xtfbvmsdzedj2pa._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:r05y persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220718-qxdh8adbb5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Formbook payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
a0cfdb287a571e7585132886bc8a0ad8de4427eb4b2bad5e650d5921e4834e9e
MD5 hash:
c1e2ae1a256c5f04180bfc588a8ba84e
SHA1 hash:
b122884a60b3f1830b892478fb0f08b44018b982
Link:
https://www.unpac.me/results/ed99f012-c440-4981-98ca-d1b7fc925754/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/a0cfdb287a571e7585132886bc8a0ad8de4427eb4b2bad5e650d5921e4834e9e

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.

Cape
Cape
https://www.capesandbox.com/analysis/291584/

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