MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8ef8e3afba42a19e43c2cb6f591ad6ef601791db37b5626f6102e6c4d39667b7. 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: 18


Intelligence 18 IOCs YARA 16 File information Comments
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SHA256 hash: 8ef8e3afba42a19e43c2cb6f591ad6ef601791db37b5626f6102e6c4d39667b7
SHA3-384 hash: adfba5726c0b39d62b85ddc9bfd13606baf49ea0d0937c5d7d783cec68283731f2eeac2b39b862477774e126494df265
SHA1 hash: bba13f32dc03ba024b55a76e92137dec699640cc
MD5 hash: 9fb018d34d80db3b22e721e2768f6bb5
humanhash: yellow-hotel-potato-steak
File name:9fb018d34d80db3b22e721e2768f6bb5.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:629'760 bytes
First seen:2024-05-22 14:49:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:u7gn06G1PFB897MDygmTpOAfTCts1tsLFZT/maWYw6EnKnqcgaogPkUhlQlbnm3q:u7u074JMDygmTpO7UyLvNvXJ9PkUhlOQ
TLSH T192D4238973E8EA93D6B9967946B126107332985E9412FBAA5CC400D51CBF704C31BFFB
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) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
341
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
8ef8e3afba42a19e43c2cb6f591ad6ef601791db37b5626f6102e6c4d39667b7.exe
Verdict:
Malicious activity
Analysis date:
2024-05-22 14:52:12 UTC
Tags:
formbook stealer spyware xloader
Link:
https://app.any.run/tasks/613bf805-d1ff-4177-979f-f34cee27ea73

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2858.10810.11770.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=664e062d2bd2b41abe0df58cwin7simulatehigh_evasion
Tags:
Banker Encryption Execution Generic Network Swotter Dexter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Creating a file
Launching cmd.exe command interpreter
Setting browser functions hooks
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/664e061f84a805d18f23201f/reports/58ed5f71-daf0-40a5-bed7-6c5366f0e445/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/8ef8e3afba42a19e43c2cb6f591ad6ef601791db37b5626f6102e6c4d39667b7
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/772915ba-c05a-430c-a047-8ceef830c9b0
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1445836
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Loading BitLocker PowerShell Module
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Rundll32 Execution Without CommandLine Parameters
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1445836 Sample: 0TGpiP3RIc.exe Startdate: 22/05/2024 Architecture: WINDOWS Score: 100 34 www.wyclhj7gqfustzp.buzz 2->34 36 www.sukhiclothing.com 2->36 38 12 other IPs or domains 2->38 46 Snort IDS alert for network traffic 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 12 other signatures 2->52 11 0TGpiP3RIc.exe 4 2->11         started        signatures3 process4 signatures5 56 Adds a directory exclusion to Windows Defender 11->56 14 RegSvcs.exe 11->14         started        17 powershell.exe 23 11->17         started        process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 72 2 other signatures 14->72 19 explorer.exe 50 1 14->19 injected 70 Loading BitLocker PowerShell Module 17->70 23 WmiPrvSE.exe 17->23         started        25 conhost.exe 17->25         started        process8 dnsIp9 40 www.humtivers.com 213.186.33.5, 49725, 80 OVHFR France 19->40 42 www.80sos.com 194.147.100.76, 49727, 80 LITECOMLitecomAGCH unknown 19->42 44 sukhiclothing.com 3.33.130.190, 49722, 80 AMAZONEXPANSIONGB United States 19->44 54 System process connects to network (likely due to code injection or exploit) 19->54 27 rundll32.exe 19->27         started        signatures10 process11 signatures12 58 Modifies the context of a thread in another process (thread injection) 27->58 60 Maps a DLL or memory area into another process 27->60 62 Tries to detect virtualization through RDTSC time measurements 27->62 30 cmd.exe 1 27->30         started        process13 process14 32 conhost.exe 30->32         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8ef8e3afba42a19e43c2cb6f591ad6ef601791db37b5626f6102e6c4d39667b7
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/8ef8e3afba42a19e43c2cb6f591ad6ef601791db37b5626f6102e6c4d39667b7/
Threat name:
ByteCode-MSIL.Trojan.Taskun
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Status:
Malicious
First seen:
2024-05-22 08:26:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=r34ohl52ikqz4q6cznxvsgww55qbpeo3g62we33baltmju4wm63q._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:dn03 execution rat spyware stealer trojan
Link:
https://tria.ge/reports/240522-r7lg9aeh72/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/ea8f68ee-1972-43e1-ad6d-ec4b1b0a7221
Unpacked files
SH256 hash:
0fcf77c1d8dbf54d6c82d06ac69f91c4820c097291a17455ed67a3a51e51153b
MD5 hash:
40f4608e46aa185bfd48492bb5e7f71f
SHA1 hash:
8b1509956f24a723717ba2d81e86c5f7261eda4a
Detections:
FormBook
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win_formbook_w0
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win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/e9e9d0e5-05a0-4e5b-82e2-613ec53ea0ed/
Parent samples :
e881b599bdef921677c57eeeb516ab55d6ba988637113a43949f923276a09c8f
8ef8e3afba42a19e43c2cb6f591ad6ef601791db37b5626f6102e6c4d39667b7
SH256 hash:
0b7dcc18b0ef39734a24ca5923b02df82c670d08365fe376f2ed4ff9fcbc6303
MD5 hash:
0441cc0dacc6d821252e66a156b1d9bd
SHA1 hash:
df46cc702950a53a5de7b804d2076ef03f8ac6b4
Link:
https://www.unpac.me/results/e9e9d0e5-05a0-4e5b-82e2-613ec53ea0ed/
SH256 hash:
2d9da9b03cbd20b47a292376ae7eb1d6cbf1e81549b26b53db767f8ceda705cd
MD5 hash:
c98da162ac35780b770f3475e17ec924
SHA1 hash:
555fbc70b564be8256042b84a3072f69b053f5c5
Link:
https://www.unpac.me/results/e9e9d0e5-05a0-4e5b-82e2-613ec53ea0ed/
SH256 hash:
c6be70e71ea1ae9ea4341b0c5b8e90de2d8380885e77d40f48660e598fbba5bf
MD5 hash:
4113d0b025fe927778b36d143c8e073e
SHA1 hash:
2d73dd4f820844c9e3ed7ab2be451596236b9d2c
Link:
https://www.unpac.me/results/e9e9d0e5-05a0-4e5b-82e2-613ec53ea0ed/
SH256 hash:
8ef8e3afba42a19e43c2cb6f591ad6ef601791db37b5626f6102e6c4d39667b7
MD5 hash:
9fb018d34d80db3b22e721e2768f6bb5
SHA1 hash:
bba13f32dc03ba024b55a76e92137dec699640cc
Link:
https://www.unpac.me/results/e9e9d0e5-05a0-4e5b-82e2-613ec53ea0ed/
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/8ef8e3afba42a19e43c2cb6f591ad6ef601791db37b5626f6102e6c4d39667b7

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:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
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.

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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