MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 435424456ff6964a551a626db39ad606b58644f6ae9189e1e590aec8d645c397. 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: 20


Intelligence 20 IOCs YARA 5 File information Comments
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SHA256 hash: 435424456ff6964a551a626db39ad606b58644f6ae9189e1e590aec8d645c397
SHA3-384 hash: f74352e7ac74704963f5a3ea05566d8fe6cdc4f3d7833fd4bb9052ea1a3667e14a6ac4546205e1cf47af2d23690f0c3d
SHA1 hash: 4606c0dc68d132d32ceb0052e970e813eb881d51
MD5 hash: 9543b5b2255515598a9029b12bf4ba3d
humanhash: diet-river-summer-steak
File name:DHL documents required_PDF.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:697'344 bytes
First seen:2024-09-06 07:18:55 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 12288:9P9r1UoIG5MPUekc2vJPGWmEDKGS3BI951CqYxbVpQp1Lh1He3:9vUobyJC+9YKGr9rCqUV4BPHe3
TLSH T13BE4125432EA863AE6FD877BD02232001339EF675603E35D6DD138E51BB3BD60991A87
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
File icon (PE):PE icon
dhash icon c89c98acacacbcac (31 x Loki, 23 x AgentTesla, 22 x AveMariaRAT)
Reporter abuse_ch
Tags:DHL exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
362
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
DHL documents required_PDF.exe
Verdict:
Malicious activity
Analysis date:
2024-09-06 07:28:47 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/06f56c8f-e1d5-486f-9402-d957cb13d919

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Dropper.Smdd-6956905-0
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66daacfb8e12b8124ac958f8
Tags:
Generic Static Stealth Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade packed vbnet
Link:
https://www.filescan.io/uploads/66daacf25c8b8a8b65fe2c3a/reports/88a6d70d-bba6-4256-adef-0aa4004c4a81/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/435424456ff6964a551a626db39ad606b58644f6ae9189e1e590aec8d645c397
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/31f13b5b-b1b8-45d8-85e6-e6f52fb94a6a
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1505427
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Query firmware table information (likely to detect VMs)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Uses netstat to query active network connections and open ports
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1505427 Sample: DHL documents required_PDF.exe Startdate: 06/09/2024 Architecture: WINDOWS Score: 100 35 www.ames666.xyz 2->35 37 www.rojectleadzone.website 2->37 39 3 other IPs or domains 2->39 43 Multi AV Scanner detection for domain / URL 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 51 10 other signatures 2->51 11 DHL documents required_PDF.exe 3 2->11         started        signatures3 49 Performs DNS queries to domains with low reputation 35->49 process4 file5 33 C:\...\DHL documents required_PDF.exe.log, ASCII 11->33 dropped 63 Injects a PE file into a foreign processes 11->63 15 DHL documents required_PDF.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 2 other signatures 15->71 18 explorer.exe 32 7 15->18 injected process9 signatures10 41 Uses netstat to query active network connections and open ports 18->41 21 NETSTAT.EXE 18->21         started        24 WerFault.exe 21 18->24         started        process11 signatures12 53 Modifies the context of a thread in another process (thread injection) 21->53 55 Maps a DLL or memory area into another process 21->55 57 Tries to detect virtualization through RDTSC time measurements 21->57 59 Switches to a custom stack to bypass stack traces 21->59 26 explorer.exe 57 128 21->26         started        29 cmd.exe 1 21->29         started        process13 signatures14 61 Query firmware table information (likely to detect VMs) 26->61 31 conhost.exe 29->31         started        process15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/435424456ff6964a551a626db39ad606b58644f6ae9189e1e590aec8d645c397
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/435424456ff6964a551a626db39ad606b58644f6ae9189e1e590aec8d645c397/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
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Status:
Malicious
First seen:
2024-09-05 11:36:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
24 of 37 (64.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=inkcirlp62leuvi2mjw3hgwwa22ymrhwv2iytypfscxmrvsfyolq._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:b31a discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/240906-h5jffataqr/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/cd799f12-01d5-45ec-a62d-9ced0531d7fe
Unpacked files
SH256 hash:
c83c0a367712867b960ce8d742a57cfe6231d65cfe5eb14cdcced497d77fcd65
MD5 hash:
3abd239253118b6d0a823b9efd1ca97c
SHA1 hash:
1da5c763b07be907a24dc57d3d22e278ca9be6ad
Detections:
FormBook
Create hunting rule
win_formbook_g0
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win_formbook_auto
Create hunting rule
win_formbook_w0
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/20588e3d-64e4-4010-9bb9-fa34b8e165d0/
Parent samples :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 hash:
cffaec7b87512de384701db9a0ea371406c5178c6187d8a46196577d7af29880
MD5 hash:
a0622ed4838cadea3b3290748e89c6cb
SHA1 hash:
bcf33182464424222318a8a0d2ed429695a7b897
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
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SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/20588e3d-64e4-4010-9bb9-fa34b8e165d0/
SH256 hash:
150c6e7de31574a3dc8c09d743987ec2c43c9bd0e6aecbf91042722359e3adc0
MD5 hash:
48815524d9fe314ab98f8df0b182908f
SHA1 hash:
a0e4dded97841cded11dce2a1b84670be882f22c
Link:
https://www.unpac.me/results/20588e3d-64e4-4010-9bb9-fa34b8e165d0/
SH256 hash:
435424456ff6964a551a626db39ad606b58644f6ae9189e1e590aec8d645c397
MD5 hash:
9543b5b2255515598a9029b12bf4ba3d
SHA1 hash:
4606c0dc68d132d32ceb0052e970e813eb881d51
Link:
https://www.unpac.me/results/20588e3d-64e4-4010-9bb9-fa34b8e165d0/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/435424456ff6/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/435424456ff6964a551a626db39ad606b58644f6ae9189e1e590aec8d645c397

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:AgentTesla_DIFF_Common_Strings_01
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Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
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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 (HIGH_ENTROPY_VA)high

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