MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 34920a90105dca3971cbd0871a0f34203c6b398197b8239eba454d502100f9ee. 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 8 File information Comments
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SHA256 hash: 34920a90105dca3971cbd0871a0f34203c6b398197b8239eba454d502100f9ee
SHA3-384 hash: f362c9bcddb50a649e2a3e85223cc1c1bcc2458bcebed3425fd358fd3c145d17b3c7f6e7f2d6fbfd8520ef03be54918e
SHA1 hash: 3b2619339ab8b726d762653e1e47e133f65c1357
MD5 hash: defc1589e9cfa570430980c08979de35
humanhash: mango-vermont-louisiana-steak
File name:(SO.5649) PO-54219 54224 54226 54229 EXPORT.PDF.scr
Download: download sample
Signature Formbook
Create hunting rule
File size:794'624 bytes
First seen:2024-05-21 01:14:18 UTC
Last seen:2024-05-21 02:28:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:In698VVYPxQFKHqGi66/teuuANViA65f:v9SOQFKHqGy7Cf
Threatray 51 similar samples on MalwareBazaar
TLSH T1B3F4233457E68B19C80F03B9B9E802A203B7312AB155DB496EE12CFFACA5F61C716517
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 f0ccece8e0e8ccf0 (2 x AgentTesla, 1 x RemcosRAT, 1 x AsyncRAT)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
327
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
34920a90105dca3971cbd0871a0f34203c6b398197b8239eba454d502100f9ee.exe
Verdict:
Malicious activity
Analysis date:
2024-05-21 01:14:35 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/30dcb83f-7764-4701-81c6-2f6daa4807e5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.CrypterX-gen.27785.3815.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Launching a process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/664bf59bd5791e8ce289789a/reports/ab78854a-dbd2-4584-af63-ecedae192cde/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/34920a90105dca3971cbd0871a0f34203c6b398197b8239eba454d502100f9ee
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6e8f8a01-38be-4743-912d-55dec53cef68
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1444648
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
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
Queues an APC in another process (thread injection)
Sigma detected: Suspicious Process Parents
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1444648 Sample: (SO.5649) PO-54219 54224 54... Startdate: 21/05/2024 Architecture: WINDOWS Score: 100 28 www.cen32bro11.xyz 2->28 30 www.xbavju.top 2->30 32 15 other IPs or domains 2->32 42 Multi AV Scanner detection for domain / URL 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus detection for URL or domain 2->46 50 8 other signatures 2->50 10 (SO.5649) PO-54219 54224 54226 54229 EXPORT.PDF.scr.exe 3 2->10         started        signatures3 48 Performs DNS queries to domains with low reputation 28->48 process4 signatures5 62 Injects a PE file into a foreign processes 10->62 13 (SO.5649) PO-54219 54224 54226 54229 EXPORT.PDF.scr.exe 10->13         started        process6 signatures7 64 Maps a DLL or memory area into another process 13->64 16 bjYjFiQgckXCFT.exe 13->16 injected process8 signatures9 40 Found direct / indirect Syscall (likely to bypass EDR) 16->40 19 certutil.exe 13 16->19         started        process10 signatures11 52 Tries to steal Mail credentials (via file / registry access) 19->52 54 Tries to harvest and steal browser information (history, passwords, etc) 19->54 56 Modifies the context of a thread in another process (thread injection) 19->56 58 2 other signatures 19->58 22 bjYjFiQgckXCFT.exe 19->22 injected 26 firefox.exe 19->26         started        process12 dnsIp13 34 www.19726.cloud 156.236.68.134, 59851, 59852, 59853 YISUCLOUDLTD-AS-APYISUCLOUDLTDHK Seychelles 22->34 36 www.optime19.com 173.255.194.134, 59835, 59836, 59837 LINODE-APLinodeLLCUS United States 22->36 38 5 other IPs or domains 22->38 60 Found direct / indirect Syscall (likely to bypass EDR) 22->60 signatures14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/34920a90105dca3971cbd0871a0f34203c6b398197b8239eba454d502100f9ee
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/34920a90105dca3971cbd0871a0f34203c6b398197b8239eba454d502100f9ee/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2024-05-21 01:15:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gsjaveaqlxfds4ol2cdrudzuea6gwombs64chhv2ivgvaiia7hxa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0cb284abb63cf61b070bfa0a5250ff536f92907bbf5eec07070b9aeafa4ac2bd
Formbook
19b86526b9c8b33ee230bba95c8a02fc47db4d230933c3ebcb6888e0dd344f77
Formbook
2050b0603ae96789023743dfbfc10a20a9e2f02952ed2e779f23013f79dfb800
Formbook
2147a98d06363c13164eb05dbaa3f4284c765a5e55bef5f15727edd55fabff7b
Formbook
37fd7b8035bd49b8dfad405a793428dda8cbf623de0133818756d05a1191d8b7
Formbook
bf1f882e2a1d0e35207cd7cab867bffe933e134e43ff317acf2db538bd4d7210
Formbook
d0b94b855d2f24add1edf6b3a6ecae24e4366f181a1ccd0bcd3b27e94de95bc0
Formbook
f7decb942c4d2f001d2f810978463780697403597ed4f5102a19c27edd649ce3
Formbook
+ 41 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/240521-bl84esdd25/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
40128ca1cf044b9813e28a9e196501af80ac7d15c3b251d0eac40c5406762afe
MD5 hash:
038440326283338ef3ab563fda59e64c
SHA1 hash:
b74e338147e231c9b6cc28f62d7510029b7ba7cf
Link:
https://www.unpac.me/results/79a3ef06-5d2a-4ab0-8c43-7d3b3f3cd124/
SH256 hash:
4179f6faef68a82ff9d04ce9c1adda3969b95308c32f81df22e435a3f2d4b426
MD5 hash:
bd91bffc41db8a67e3a782c0021c0eee
SHA1 hash:
456c770830883a4382b40481964520acdcb7df4e
Link:
https://www.unpac.me/results/79a3ef06-5d2a-4ab0-8c43-7d3b3f3cd124/
SH256 hash:
94ec890655a4231b0a5be26648ab5d5f77cd59acd118b939c4dd54688c334eb5
MD5 hash:
fff89077c96605a0b402d8ad0d489751
SHA1 hash:
f767cd7741ddce483675636d2f7bbca589cd002a
Link:
https://www.unpac.me/results/79a3ef06-5d2a-4ab0-8c43-7d3b3f3cd124/
SH256 hash:
f540e8d603962027b3a1f8b86d035281bfbdd3a05a621ead255825bc2082632a
MD5 hash:
d172f59251b97b415b621d302e1be2b7
SHA1 hash:
b1534e603749c901b5ac185f20e281f6be7fa908
Link:
https://www.unpac.me/results/79a3ef06-5d2a-4ab0-8c43-7d3b3f3cd124/
SH256 hash:
27ddc96465ac70b602e730ca4b28018a2875f5aca4215f3d8608b9defc8bf23d
MD5 hash:
1b2614489be216f14010dea5dee50dc5
SHA1 hash:
046c2462662dc3adea1c79121b4d865665850e23
Link:
https://www.unpac.me/results/79a3ef06-5d2a-4ab0-8c43-7d3b3f3cd124/
SH256 hash:
34920a90105dca3971cbd0871a0f34203c6b398197b8239eba454d502100f9ee
MD5 hash:
defc1589e9cfa570430980c08979de35
SHA1 hash:
3b2619339ab8b726d762653e1e47e133f65c1357
Link:
https://www.unpac.me/results/79a3ef06-5d2a-4ab0-8c43-7d3b3f3cd124/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/34920a90105d/report/overview.html
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/34920a90105dca3971cbd0871a0f34203c6b398197b8239eba454d502100f9ee

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:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe 34920a90105dca3971cbd0871a0f34203c6b398197b8239eba454d502100f9ee

(this sample)

  
Delivery method
Distributed via e-mail attachment

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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