MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 148da9a63f027b2e7625f0b82b42bc795737b55c46d040af508fdcea2bccad98. 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: 16


Intelligence 16 IOCs YARA 4 File information Comments
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SHA256 hash: 148da9a63f027b2e7625f0b82b42bc795737b55c46d040af508fdcea2bccad98
SHA3-384 hash: 64f4135f12372760b8e0f258900f845ffbb0caf24b41388ebe729b1e1859feb39e3ce2cf3593bd91d48a7a3c13f9290b
SHA1 hash: 4e7c62d7d5b1353bfc0e0220ae89e5409201bc70
MD5 hash: 64a5e155baded9185ecd1fa9946c13aa
humanhash: zebra-quiet-virginia-eight
File name:148da9a63f027b2e7625f0b82b42bc795737b55c46d040af508fdcea2bccad98
Download: download sample
Signature Formbook
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File size:814'080 bytes
First seen:2024-07-01 13:47:30 UTC
Last seen:2024-07-01 14:32:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:6+S+SFXRuTwyC6flXB3pAJFvkP5UfazdkZRavD7R5GfYG2ucIjkM:XwRuljp0v6U0SZGhGVC
TLSH T1DC05F08A17E56914E1BF77B47A74905047F3B6DBD822C24F088952EE3B73B806D817A3
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)
File icon (PE):PE icon
dhash icon b08e080c0c088bb0 (5 x AveMariaRAT, 4 x Formbook)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
377
Origin country :
HU HU
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.Packed2.47111.12607.18795.UNOFFICIAL
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Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6682b40fbba6ccecd93a19ecwin10vpnfull_triage
Tags:
Generic Malware
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
formbook keylogger packed snake vbnet
Link:
https://www.filescan.io/uploads/6682b39d0bf5978c0b13f1bc/reports/7c13db28-6148-4237-ac7b-4db659b59acc/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/148da9a63f027b2e7625f0b82b42bc795737b55c46d040af508fdcea2bccad98
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/2edfe2f7-8d8d-43ae-9b8c-7ebb52f1efb5
Result
Threat name:
DarkTortilla, FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1465386
Signature
.NET source code contains method to dynamically call methods (often used by packers)
AI detected suspicious sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected DarkTortilla Crypter
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1465386 Sample: yaM8XR1HfL.exe Startdate: 01/07/2024 Architecture: WINDOWS Score: 100 32 www.osthirmaker.com 2->32 34 www.nftees.tech 2->34 38 Snort IDS alert for network traffic 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 10 other signatures 2->44 11 yaM8XR1HfL.exe 3 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\...\yaM8XR1HfL.exe.log, ASCII 11->30 dropped 54 Tries to detect virtualization through RDTSC time measurements 11->54 56 Hides that the sample has been downloaded from the Internet (zone.identifier) 11->56 58 Injects a PE file into a foreign processes 11->58 60 Switches to a custom stack to bypass stack traces 11->60 15 yaM8XR1HfL.exe 11->15         started        18 yaM8XR1HfL.exe 11->18         started        signatures6 process7 signatures8 62 Modifies the context of a thread in another process (thread injection) 15->62 64 Maps a DLL or memory area into another process 15->64 66 Sample uses process hollowing technique 15->66 68 2 other signatures 15->68 20 explorer.exe 56 1 15->20 injected process9 dnsIp10 36 www.nftees.tech 217.160.0.1, 49718, 80 ONEANDONE-ASBrauerstrasse48DE Germany 20->36 23 WWAHost.exe 20->23         started        process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 23->46 48 Maps a DLL or memory area into another process 23->48 50 Tries to detect virtualization through RDTSC time measurements 23->50 52 Switches to a custom stack to bypass stack traces 23->52 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/148da9a63f027b2e7625f0b82b42bc795737b55c46d040af508fdcea2bccad98
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/148da9a63f027b2e7625f0b82b42bc795737b55c46d040af508fdcea2bccad98/
Threat name:
Win32.Trojan.Leonem
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Status:
Malicious
First seen:
2024-06-26 19:05:53 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=csg2tjr7aj5s45rf6c4cwqv4pfltpnk4i3iebl2qr7oouk6mvwma._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:na10 rat spyware stealer trojan
Link:
https://tria.ge/reports/240701-q34ycsycpm/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/133860ca-82af-4c02-ba01-709dc5615707
Unpacked files
SH256 hash:
1295bd6ca829494652e8300b69aef29665c2d1f7189c12cf0cc87afb506f68c5
MD5 hash:
2cbaa21deb4daf8aa7e69a7ac04a9273
SHA1 hash:
1b3eda3014237407c927fcb7ff0f58f1c35ee2bc
Detections:
FormBook
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win_formbook_g0
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win_formbook_auto
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win_formbook_w0
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Formbook
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Link:
https://www.unpac.me/results/6ab5b31b-ecab-4c5d-a163-5276961024b6/
Parent samples :
148da9a63f027b2e7625f0b82b42bc795737b55c46d040af508fdcea2bccad98
15f84dc497c0b5c757f8fcc090e88adbfd25d506c267bd8c76f92824856931c4
2a899ee00e6f2b09c002a3dc271e3ec7d15a7c98b8a3d9500f96dfd7fe941f4a
84fd288b1a34fb0f876bfc4f12f3d089827ebe8caf420b4177e9f15f290b8997
a2c40c36ad82e27b4db35cb35800e6fcd428983434b9bb11b5005e92b353baad
a95b0c1b827bdd6ee8bd88cf53606903570c96bca33fe9215ab64b09d1641533
SH256 hash:
56aaa2b9e53d69dd75c8d1247220d8ea97b1b7705796b2e2ddff34c7eea8adee
MD5 hash:
50f28d178452b2db4e1f466904e55c78
SHA1 hash:
d9a3246a570715d756a6c653b6818afb99ae39ec
Link:
https://www.unpac.me/results/6ab5b31b-ecab-4c5d-a163-5276961024b6/
SH256 hash:
0781f74db6c9ff7aa0c1e76dd0ebc4a9575fba6caca9aac9fb0131c5a73c84be
MD5 hash:
2c064163cda2f093cf6d20302481dff7
SHA1 hash:
cf948b10d999c369ef51972f86278a4f536d400d
Link:
https://www.unpac.me/results/6ab5b31b-ecab-4c5d-a163-5276961024b6/
SH256 hash:
2db82e9b91b1ccb1957b4e06ec49bfb0096e973213fc1786de1bbe3162f5df5a
MD5 hash:
27dea42a70bd7e948f1171ce873878a1
SHA1 hash:
b87051d51479c093cdf3e721acea4fd8b940b1e5
Link:
https://www.unpac.me/results/6ab5b31b-ecab-4c5d-a163-5276961024b6/
SH256 hash:
148da9a63f027b2e7625f0b82b42bc795737b55c46d040af508fdcea2bccad98
MD5 hash:
64a5e155baded9185ecd1fa9946c13aa
SHA1 hash:
4e7c62d7d5b1353bfc0e0220ae89e5409201bc70
Link:
https://www.unpac.me/results/6ab5b31b-ecab-4c5d-a163-5276961024b6/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/148da9a63f02/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/148da9a63f027b2e7625f0b82b42bc795737b55c46d040af508fdcea2bccad98

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: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

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 (GUARD_CF)high

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