MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b0ee61b0c2873d1e86b99f48ddacae7ce51efc7272048827ae368b98cafe2be. 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 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4b0ee61b0c2873d1e86b99f48ddacae7ce51efc7272048827ae368b98cafe2be
SHA3-384 hash: c65d751ac9a76bdd740d2f6b2dd29fade68a28cd26cd27063285469e4e31611adb9624a24776fce0ae879497939cc108
SHA1 hash: 4dda6258af72ad6e2d70c61238baeecb8cd05ed5
MD5 hash: 8ad33ef9b2c5ace2b195d8213525809d
humanhash: emma-mountain-lion-earth
File name:file.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:930'824 bytes
First seen:2024-04-16 07:37:38 UTC
Last seen:2024-04-16 08:28:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:Y1oG8je76qs4LXS+1k1z/hOwmRRhljKQv:SoG8jqs6S+X5RRhlH
TLSH T10615ADAD7210B6DFC817CD76CA981C64EA6038BB530BD603A01716ED9A0DA9BDF151F3
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 004000c8c8004000 (6 x AgentTesla, 6 x Formbook, 4 x Neshta)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
302
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4b0ee61b0c2873d1e86b99f48ddacae7ce51efc7272048827ae368b98cafe2be.exe
Verdict:
Suspicious activity
Analysis date:
2024-04-16 07:53:09 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c3c447b4-0685-416a-89a3-4d90c21227d1

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/661e2ade75339da04f92ebe4/reports/4d545ade-ec84-4d43-8083-11599aa51915/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/4b0ee61b0c2873d1e86b99f48ddacae7ce51efc7272048827ae368b98cafe2be
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/89e2afb7-75e8-4068-be70-afd8f5d8d140
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1426530
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found direct / indirect Syscall (likely to bypass EDR)
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)
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1426530 Sample: file.exe Startdate: 16/04/2024 Architecture: WINDOWS Score: 100 28 www.quantumboulevard.xyz 2->28 30 www.trustwaletapp.com 2->30 32 16 other IPs or domains 2->32 42 Snort IDS alert for network traffic 2->42 44 Multi AV Scanner detection for domain / URL 2->44 46 Malicious sample detected (through community Yara rule) 2->46 50 6 other signatures 2->50 10 file.exe 3 2->10         started        signatures3 48 Performs DNS queries to domains with low reputation 28->48 process4 signatures5 62 Detected unpacking (changes PE section rights) 10->62 64 Detected unpacking (overwrites its own PE header) 10->64 13 file.exe 10->13         started        process6 signatures7 66 Maps a DLL or memory area into another process 13->66 16 DAlPABxhhbnZXPgRHVUhsskM.exe 13->16 injected process8 signatures9 40 Found direct / indirect Syscall (likely to bypass EDR) 16->40 19 unlodctr.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 DAlPABxhhbnZXPgRHVUhsskM.exe 19->22 injected 26 firefox.exe 19->26         started        process12 dnsIp13 34 www.gattosat.icu 109.123.121.243, 49719, 49720, 49721 UK2NET-ASGB United Kingdom 22->34 36 www.quantumboulevard.xyz 66.29.135.159, 49727, 49728, 49729 ADVANTAGECOMUS United States 22->36 38 11 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/4b0ee61b0c2873d1e86b99f48ddacae7ce51efc7272048827ae368b98cafe2be
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4b0ee61b0c2873d1e86b99f48ddacae7ce51efc7272048827ae368b98cafe2be/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2024-04-16 07:38:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jmhomgymfbz5d2dlth2i3wwk47hfd36he4qerat24nultdfp4k7a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/240416-jgdqqaed21/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
d2757181ac55df4289773e66ad9fce1f9b9dcd15145567e2574c766907455edf
MD5 hash:
5622dec8af5afc60239d7bb984831477
SHA1 hash:
70532c8a7d9c926c7ac7e2153745613f273f8eee
Link:
https://www.unpac.me/results/00537e7d-9900-4192-aada-2b000fc51303/
SH256 hash:
bc8542b7bbbfdb4f7b37497593bbc39835e5fc12341b581c37377b8241d83f18
MD5 hash:
abab05ee1cf56e3127913e9b2eb91d38
SHA1 hash:
e1348c71b67779558f53ab5988af5440a3ec72bf
Link:
https://www.unpac.me/results/00537e7d-9900-4192-aada-2b000fc51303/
SH256 hash:
bb6cdd5ec29f20b4247ce23a659ff0b9e37a692452d21b9bbd9e480642c62223
MD5 hash:
161d703eea44501fb667298277f9b317
SHA1 hash:
cd8ae5a50d114e9bea927107e4ad10c8ee697770
Link:
https://www.unpac.me/results/00537e7d-9900-4192-aada-2b000fc51303/
SH256 hash:
0b55016d4354fa25da6837c4091a7d7339f74babdf4afc9991c033819bc779f7
MD5 hash:
ef0dbd1748387f6dd814641e9d16df25
SHA1 hash:
6d42bd9eb57d42a7d8cf2898f5a25b2d279f1d2a
Link:
https://www.unpac.me/results/00537e7d-9900-4192-aada-2b000fc51303/
SH256 hash:
5d3b862b27a5560f64437cb6536329849a21cdf636a5a60903f09e5a26d6e6ae
MD5 hash:
a3e7359f4b2bba12f1351f95d29edaf0
SHA1 hash:
3bde250aa41f4c8bb377611a8da6158265c7d2c5
Link:
https://www.unpac.me/results/00537e7d-9900-4192-aada-2b000fc51303/
SH256 hash:
4b0ee61b0c2873d1e86b99f48ddacae7ce51efc7272048827ae368b98cafe2be
MD5 hash:
8ad33ef9b2c5ace2b195d8213525809d
SHA1 hash:
4dda6258af72ad6e2d70c61238baeecb8cd05ed5
Detections:
INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Link:
https://www.unpac.me/results/00537e7d-9900-4192-aada-2b000fc51303/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4b0ee61b0c28/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4b0ee61b0c2873d1e86b99f48ddacae7ce51efc7272048827ae368b98cafe2be

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:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
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_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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.

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

Comments