MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b98d799aec5026f2903adc659e69f7ccaeda9da2f71a4b43450f1204e090694. 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: 13


Intelligence 13 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4b98d799aec5026f2903adc659e69f7ccaeda9da2f71a4b43450f1204e090694
SHA3-384 hash: a741b60bce20b3ef557d22b093bc1cd8b0834b979292e4ebb91f376af27b71b818c0a49c29002c023b567a29f18eeb62
SHA1 hash: e3ef83ea2d3c8daec2a43fc67c8c58187ebad06e
MD5 hash: 32b4722abd5c5583deab0600115efa8c
humanhash: nine-butter-bravo-hydrogen
File name:Purchase Order_20240516.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:766'472 bytes
First seen:2024-05-16 15:42:44 UTC
Last seen:2024-05-17 04:36:06 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 12288:+0pei36R3fFiV95fWcLKMtLKeZA6lXdlWPeVGad+aC+eVd3PjV1NoTGnTkkR:xpp36ZNi75+cLLcmdlWWVzDj8jVDoTGv
TLSH T104F4220417BB5531C7ACCBB2A1F632068B75729715E0DA4BB4D482D417E3BE0FA42A7B
TrID 61.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.1% (.SCR) Windows screen saver (13097/50/3)
8.9% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.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 0074696971796400 (7 x AgentTesla, 6 x Formbook, 3 x Loki)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
318
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4b98d799aec5026f2903adc659e69f7ccaeda9da2f71a4b43450f1204e090694.exe
Verdict:
Malicious activity
Analysis date:
2024-05-16 16:38:59 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/6d30b7ed-b65f-430f-ab16-a03f23b56066

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.BackDoor.AgentTeslaNET.9.24249.21521.UNOFFICIAL
Create hunting rule

Gathering data
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:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade overlay packed
Link:
https://www.filescan.io/uploads/66462991d5791e8ce287f416/reports/82de5d83-aa9c-4f3a-af13-0af40eb59c37/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4b98d799aec5026f2903adc659e69f7ccaeda9da2f71a4b43450f1204e090694
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/ccaeab79-7d18-4c9f-8dc0-ee89574073bf
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1442811
Signature
.NET source code contains potential unpacker
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 submitted file
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)
Uses nslookup.exe to query domains
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1442811 Sample: Purchase Order_20240516.exe Startdate: 16/05/2024 Architecture: WINDOWS Score: 100 28 www.vpachurch.org.uk 2->28 30 www.shortput.top 2->30 32 22 other IPs or domains 2->32 44 Snort IDS alert for network traffic 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus detection for URL or domain 2->48 50 7 other signatures 2->50 10 Purchase Order_20240516.exe 3 2->10         started        signatures3 process4 signatures5 62 Injects a PE file into a foreign processes 10->62 13 Purchase Order_20240516.exe 10->13         started        process6 signatures7 64 Maps a DLL or memory area into another process 13->64 16 YGzNyqVBKFoFxRVbBeTxTbRsqG.exe 13->16 injected process8 signatures9 40 Uses nslookup.exe to query domains 16->40 42 Found direct / indirect Syscall (likely to bypass EDR) 16->42 19 nslookup.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 YGzNyqVBKFoFxRVbBeTxTbRsqG.exe 19->22 injected 26 firefox.exe 19->26         started        process12 dnsIp13 34 www.shortput.top 203.161.43.227, 49741, 49742, 49743 VNPT-AS-VNVNPTCorpVN Malaysia 22->34 36 betopfloor.com 108.179.192.228, 49753, 49754, 49755 UNIFIEDLAYER-AS-1US 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:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4b98d799aec5026f2903adc659e69f7ccaeda9da2f71a4b43450f1204e090694
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4b98d799aec5026f2903adc659e69f7ccaeda9da2f71a4b43450f1204e090694/
Threat name:
Win32.Trojan.Swotter
Create hunting rule
Status:
Malicious
First seen:
2024-05-16 03:06:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
17 of 23 (73.91%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jomnpgnoyubg6kidvxdftzu7ptfo3ko2f5y2jnbukdysatqja2ka._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/240516-s5xyyabf4s/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
ea9eef71655ad92fb314ddf37633b88f23eebeffde6d547fe51c3fa662a9e9bc
MD5 hash:
f81207e10a74338541e8723a6a417124
SHA1 hash:
4e1e5af4c43fac8d1c52e3d8ad7879cdbc2492c1
Link:
https://www.unpac.me/results/dcef40ff-b0ba-42a1-b20d-4ed73ee93ec7/
SH256 hash:
ebf469c46d04df3e52eb8690219f91dfcc6d0f29ec0c382155041f6da8537c39
MD5 hash:
8290a941e1129be99cf08f0e5ce5e1c1
SHA1 hash:
33161ef23a5ed447dc35a8b61b37705525dfdb9d
Link:
https://www.unpac.me/results/dcef40ff-b0ba-42a1-b20d-4ed73ee93ec7/
SH256 hash:
73eba06a7811038e7f291a7ebe715307b3bdecd8bad25577cf5196a81e2ab567
MD5 hash:
71f0041667d5e3ea0d269105a74e2b4a
SHA1 hash:
ffc617b42aff2ac376a7e8275d10a35630b68ce7
Link:
https://www.unpac.me/results/dcef40ff-b0ba-42a1-b20d-4ed73ee93ec7/
SH256 hash:
f540e8d603962027b3a1f8b86d035281bfbdd3a05a621ead255825bc2082632a
MD5 hash:
d172f59251b97b415b621d302e1be2b7
SHA1 hash:
b1534e603749c901b5ac185f20e281f6be7fa908
Link:
https://www.unpac.me/results/dcef40ff-b0ba-42a1-b20d-4ed73ee93ec7/
SH256 hash:
0b4572ff5c2036e8137a8b2f29b490d32922f0b28c5fc7ef6143fa5a2f2b26f8
MD5 hash:
60ce147ca995e74c698e8f8fdf885f11
SHA1 hash:
7ee13afa6352db044731c354330ec4d0f1973fc8
Link:
https://www.unpac.me/results/dcef40ff-b0ba-42a1-b20d-4ed73ee93ec7/
SH256 hash:
4b98d799aec5026f2903adc659e69f7ccaeda9da2f71a4b43450f1204e090694
MD5 hash:
32b4722abd5c5583deab0600115efa8c
SHA1 hash:
e3ef83ea2d3c8daec2a43fc67c8c58187ebad06e
Detections:
INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Link:
https://www.unpac.me/results/dcef40ff-b0ba-42a1-b20d-4ed73ee93ec7/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4b98d799aec5/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/4b98d799aec5026f2903adc659e69f7ccaeda9da2f71a4b43450f1204e090694

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:meth_stackstrings
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

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