MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5caf4d51607ec725eef603be7bad886205f02225cc6adaf43234203d3fd43d4d. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5caf4d51607ec725eef603be7bad886205f02225cc6adaf43234203d3fd43d4d
SHA3-384 hash: c10ad3c384190ef5db89c1f01c2d9ccd5cd69396534814952e4a505ce4c69118723c0873acfcd0a2f6f88d0b5533ebc4
SHA1 hash: 20dd5329681c1fca920e25ea81d22f297c30e215
MD5 hash: dfbb5e29cc55df4682deb2d5e42312c4
humanhash: beer-network-lion-magnesium
File name:DRAFT 99577590.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:838'656 bytes
First seen:2024-06-06 15:27:44 UTC
Last seen:2024-06-06 16:21:35 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:tR7C3c6HkGbmzXBpLAO4pJ7YlgtY+VTAC:thWfuxVA7bklgtY+VTA
Threatray 496 similar samples on MalwareBazaar
TLSH T1F905011532785FC5D67543FEA660A2602F30707FA032FAD8BD8691EB1E35B08059AB5F
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 64e4a4a4e4e464a4 (10 x AgentTesla, 8 x Formbook, 1 x Rhadamanthys)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
325
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5caf4d51607ec725eef603be7bad886205f02225cc6adaf43234203d3fd43d4d.exe
Verdict:
Malicious activity
Analysis date:
2024-06-06 16:30:05 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4eea9569-d398-4937-afd9-3ba0f235d686

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2511.21788.22490.UNOFFICIAL
Create hunting rule

Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6661d597910ce98966f8d7a8/reports/aa7e79d9-ab35-4af6-adf8-92409b76d03f/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/5caf4d51607ec725eef603be7bad886205f02225cc6adaf43234203d3fd43d4d
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:
Malicious Packer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/059841c6-3a83-4721-8976-80d430565cb7
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1453214
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1453214 Sample: DRAFT 99577590.exe Startdate: 06/06/2024 Architecture: WINDOWS Score: 100 59 www.ycwtch.co.uk 2->59 61 www.verosocialdiary.com 2->61 63 24 other IPs or domains 2->63 75 Snort IDS alert for network traffic 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 Antivirus detection for URL or domain 2->79 81 11 other signatures 2->81 10 DRAFT 99577590.exe 7 2->10         started        14 ltegzqAPr.exe 5 2->14         started        signatures3 process4 file5 51 C:\Users\user\AppData\Roaming\ltegzqAPr.exe, PE32 10->51 dropped 53 C:\Users\...\ltegzqAPr.exe:Zone.Identifier, ASCII 10->53 dropped 55 C:\Users\user\AppData\Local\...\tmp9AC5.tmp, XML 10->55 dropped 57 C:\Users\user\...\DRAFT 99577590.exe.log, ASCII 10->57 dropped 91 Adds a directory exclusion to Windows Defender 10->91 93 Injects a PE file into a foreign processes 10->93 16 DRAFT 99577590.exe 10->16         started        19 powershell.exe 23 10->19         started        21 powershell.exe 23 10->21         started        23 schtasks.exe 1 10->23         started        95 Multi AV Scanner detection for dropped file 14->95 97 Machine Learning detection for dropped file 14->97 25 schtasks.exe 1 14->25         started        27 ltegzqAPr.exe 14->27         started        signatures6 process7 signatures8 71 Maps a DLL or memory area into another process 16->71 29 EPYxgHjfDwNHTUAvOSoFNNSQSFLwvT.exe 16->29 injected 73 Loading BitLocker PowerShell Module 19->73 32 WmiPrvSE.exe 19->32         started        34 conhost.exe 19->34         started        36 conhost.exe 21->36         started        38 conhost.exe 23->38         started        40 conhost.exe 25->40         started        process9 signatures10 99 Found direct / indirect Syscall (likely to bypass EDR) 29->99 42 fixmapi.exe 13 29->42         started        process11 signatures12 83 Tries to steal Mail credentials (via file / registry access) 42->83 85 Tries to harvest and steal browser information (history, passwords, etc) 42->85 87 Modifies the context of a thread in another process (thread injection) 42->87 89 2 other signatures 42->89 45 EPYxgHjfDwNHTUAvOSoFNNSQSFLwvT.exe 42->45 injected 49 firefox.exe 42->49         started        process13 dnsIp14 65 upshercode.store 162.240.81.18, 49758, 49759, 49760 UNIFIEDLAYER-AS-1US United States 45->65 67 www.manandvan.site 185.151.30.215, 49762, 49763, 49764 TWENTYIGB United Kingdom 45->67 69 10 other IPs or domains 45->69 101 Found direct / indirect Syscall (likely to bypass EDR) 45->101 signatures15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/5caf4d51607ec725eef603be7bad886205f02225cc6adaf43234203d3fd43d4d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5caf4d51607ec725eef603be7bad886205f02225cc6adaf43234203d3fd43d4d/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-06-06 12:46:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
27 of 38 (71.05%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lsxu2ulap3dsl3xwao7hxlmimic7airfzrvnv5bsgqqd2p6uhvgq._file
Verdict:
malicious
Similar samples:
035b784824ed07c31f8d100b3d92777b5c83ca9113d882a75f13e8b0e283892d
Formbook
113561a55b05a8c962def7dc966ae3be7f05f4da38e97ce5803946c97b42b248
Formbook
1f7dcd5994d22e9acfb0313d58b4227abcd33966ae38863d91fbed5a0cd7b415
Formbook
255306dc51f8e03d60b15c31fcda56678224ff0e6781266a47aa71d5897429e7
Formbook
f4dde5135d892a3b27afc4a95376e7880eee75c2d0b1b711baf4a9bd93bda187
Formbook
+ 486 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
execution
Link:
https://tria.ge/reports/240606-sxw2nsgh96/
Behaviour
Creates scheduled task(s)
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Unpacked files
SH256 hash:
53fe6b22eeaa0e1326bc276d34188a1e32fce21267f8640665c2ab8fea5b2f26
MD5 hash:
d6825030b4ac2d72a23737c54b287427
SHA1 hash:
313deaa086d22cec405903b754f10c129a2b2090
Link:
https://www.unpac.me/results/57dd72e0-1a27-4a1a-bcb8-c5d0c659f3ec/
SH256 hash:
5810768083f38941c9c0c3e54beee926e1d17808c73fe691b890fa31f81696c3
MD5 hash:
cae2555ba15a4b7401e6570869618ba2
SHA1 hash:
3fc49b02b4a90960324055b22a28d8242a2d47bd
Link:
https://www.unpac.me/results/57dd72e0-1a27-4a1a-bcb8-c5d0c659f3ec/
SH256 hash:
9829892b9c57e8c1a26bf50946a29f65b1d46e0516eba38d962990c1896c7543
MD5 hash:
2b62c7eb32d44c7d6ccde61a497bc3b4
SHA1 hash:
be237320974bebdca7cb89d754faddc9eee49cf7
Link:
https://www.unpac.me/results/57dd72e0-1a27-4a1a-bcb8-c5d0c659f3ec/
SH256 hash:
1a1de9f3fe4c3a7ea7cd547cdd9d78b3873d6e243e544e5bb647452d6d9f6cfe
MD5 hash:
ceb52a5c98659e8905ea76737fe00c01
SHA1 hash:
bb7b30ff84d6aa26eaa0021c9fa3cd2c5a08e694
Link:
https://www.unpac.me/results/57dd72e0-1a27-4a1a-bcb8-c5d0c659f3ec/
SH256 hash:
e9319f360d8400e7dd18207e0731d4222b7b88f6aece7641cb960a033dfbe043
MD5 hash:
90af36207084292ebceaf0aa6a1586f7
SHA1 hash:
2583769c47d4203a8263aefeeb72b7194e272d5e
Link:
https://www.unpac.me/results/57dd72e0-1a27-4a1a-bcb8-c5d0c659f3ec/
SH256 hash:
5caf4d51607ec725eef603be7bad886205f02225cc6adaf43234203d3fd43d4d
MD5 hash:
dfbb5e29cc55df4682deb2d5e42312c4
SHA1 hash:
20dd5329681c1fca920e25ea81d22f297c30e215
Link:
https://www.unpac.me/results/57dd72e0-1a27-4a1a-bcb8-c5d0c659f3ec/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5caf4d51607e/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/5caf4d51607ec725eef603be7bad886205f02225cc6adaf43234203d3fd43d4d

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
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
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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