MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 519af3eac85cd7c6ab35d18010103a00caf8b27e5d0bb734319dcea18104f6db. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 519af3eac85cd7c6ab35d18010103a00caf8b27e5d0bb734319dcea18104f6db
SHA3-384 hash: e143e7e38f91ed425092868ab962b058b07130c590de2bf153c25bfab711d2253a3309e58c404a0240b751ae2524244c
SHA1 hash: 07e8ed493c57ab68e2b06d313429f8768d1e6bb1
MD5 hash: ca6ceb7a94ac7e7467cf9e09fac116bc
humanhash: grey-william-comet-johnny
File name:RFQ_635.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'036'288 bytes
First seen:2023-05-24 06:09:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:S0itiTB2QwbV8AUYqfLesaifb5Z6QN1sDC51n/5jjsrP75cvorMz19:rSV+RfLeo9IQPU21hf2jOAU19
Threatray 2'903 similar samples on MalwareBazaar
TLSH T13025807886B60DA6D1F7C7B487C4B817BA68BF73B0485A2540C1739D027F962B4DE42E
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) (4505/5/1)
File icon (PE):PE icon
dhash icon 0340510001002220 (1 x Formbook)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
255
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ_635.exe
Verdict:
Malicious activity
Analysis date:
2023-05-24 06:10:46 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/55cbd631-d16c-4a53-8a67-8f6bd766e809

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/390961/
Detection(s):
SecuriteInfo.com.Variant.MSILHeracles.56670.26409.27676.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin packed
Link:
https://www.filescan.io/uploads/646daa3e6f320910637ebd2a/reports/85050c56-c42c-4fd1-b784-fb0cac635964/overview
Verdict:
Malicious
Labled as:
MSILHeracles.Generic
Link:
https://www.hybrid-analysis.com/sample/519af3eac85cd7c6ab35d18010103a00caf8b27e5d0bb734319dcea18104f6db
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/e2e14a6a-8db2-4267-80eb-51821704001d
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1241327
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
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 signatures2 2 Behavior Graph ID: 874338 Sample: RFQ_635.exe Startdate: 24/05/2023 Architecture: WINDOWS Score: 100 64 Found malware configuration 2->64 66 Malicious sample detected (through community Yara rule) 2->66 68 Antivirus / Scanner detection for submitted sample 2->68 70 10 other signatures 2->70 10 RFQ_635.exe 6 2->10         started        14 ZjgsWCEDtUal.exe 5 2->14         started        process3 file4 44 C:\Users\user\AppData\...\ZjgsWCEDtUal.exe, PE32 10->44 dropped 46 C:\Users\user\AppData\Local\...\tmp262A.tmp, XML 10->46 dropped 48 C:\Users\user\AppData\...\RFQ_635.exe.log, ASCII 10->48 dropped 78 Uses schtasks.exe or at.exe to add and modify task schedules 10->78 80 Tries to detect virtualization through RDTSC time measurements 10->80 82 Injects a PE file into a foreign processes 10->82 16 RFQ_635.exe 10->16         started        19 schtasks.exe 1 10->19         started        84 Antivirus detection for dropped file 14->84 86 Multi AV Scanner detection for dropped file 14->86 88 Machine Learning detection for dropped file 14->88 21 ZjgsWCEDtUal.exe 14->21         started        23 schtasks.exe 1 14->23         started        25 ZjgsWCEDtUal.exe 14->25         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 16->56 58 Maps a DLL or memory area into another process 16->58 60 Sample uses process hollowing technique 16->60 62 Queues an APC in another process (thread injection) 16->62 27 explorer.exe 1 1 16->27 injected 31 conhost.exe 19->31         started        33 conhost.exe 23->33         started        process8 dnsIp9 50 advisewiseassociates.com 142.147.98.219, 49696, 80 UNREAL-SERVERSUS Canada 27->50 52 pltraffic35.com 72.52.179.175, 49695, 80 LIQUIDWEBUS United States 27->52 54 2 other IPs or domains 27->54 90 System process connects to network (likely due to code injection or exploit) 27->90 35 raserver.exe 27->35         started        38 svchost.exe 27->38         started        signatures10 process11 signatures12 72 Modifies the context of a thread in another process (thread injection) 35->72 74 Maps a DLL or memory area into another process 35->74 76 Tries to detect virtualization through RDTSC time measurements 35->76 40 cmd.exe 1 35->40         started        process13 process14 42 conhost.exe 40->42         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/519af3eac85cd7c6ab35d18010103a00caf8b27e5d0bb734319dcea18104f6db/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-05-24 06:10:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
18 of 23 (78.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kgnph2wiltl4nkzv2gabaeb2adfprmt6luf3onbrtxhkdaie63nq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1950034453da28649135d35016d5ab7ee791cd4bbbc1e4a72f7c56ce3aa9dd9a
Formbook
a5976236ba0b3e31a6dd09af3abe7d0121a4053bb22669869a874d1ba97bd495
Formbook
b3938532376b8d895ba266de98386155798e984764ea778c43a842a3124ccfde
Formbook
c4261e2c68f2fed74c9fc7d89f64ca53ed9bcaca51e870f8d760167b8e2e6186
Formbook
da43a0b65a0e93951f23754a21119c40e4928cf9c9a6b8d77481b631a01bc9a9
Formbook
dee9f9c3981971bad83e2d8e0735f699a74dfb1be01da7a7bf8b7dd584a731dc
Formbook
edf9df1a661fc13c4773ac176efe0381a60a04e829e338fdbcab37b5b45170e2
Formbook
f2de7e1866310a43bf34f50a907b7ec8ff5c7b9ae4421c304e26aed008f30850
Formbook
f52d31b838551b1b8c1dedb845115e5aed85decae70cba2596fa43d326b2a920
Formbook
fd57c25c7f4a591450adba8e8f2755e6a8ef62e9e28b745eae0a7369dc5ef4aa
Formbook
+ 2'893 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:n28y rat spyware stealer trojan
Link:
https://tria.ge/reports/230524-gw2d8aba42/
Behaviour
Creates scheduled task(s)
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
d6807145e7893373ede5c692d7e90c03981b752e8832fd0f36dbcf5ebe3dd799
MD5 hash:
4eaf05dc9715a80246c7f4071c98812e
SHA1 hash:
2c338e5fcb4526ef4914efe3a5229dfea83b0ab8
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/354dbf00-b0a9-4cf3-a71f-d6177637925c/
SH256 hash:
a7e471f7bc560488312d57e885bb4cfc423587a0d84abbb3073a820f7cd0e209
MD5 hash:
e7709a907be0cdb6ff7eb99daee97c6c
SHA1 hash:
bb3f6871c40f54070b53947bf6958d410ea8bac1
Link:
https://www.unpac.me/results/354dbf00-b0a9-4cf3-a71f-d6177637925c/
SH256 hash:
c7050b3880f395781a151530d86134533eaf1a04d8ac6a407a3353b2b0c097c4
MD5 hash:
d02b9838bf9aae236396163a387ecfc0
SHA1 hash:
9df033506d507c9eb3db81addf2032b8ad160eeb
Link:
https://www.unpac.me/results/354dbf00-b0a9-4cf3-a71f-d6177637925c/
SH256 hash:
519af3eac85cd7c6ab35d18010103a00caf8b27e5d0bb734319dcea18104f6db
MD5 hash:
ca6ceb7a94ac7e7467cf9e09fac116bc
SHA1 hash:
07e8ed493c57ab68e2b06d313429f8768d1e6bb1
Link:
https://www.unpac.me/results/354dbf00-b0a9-4cf3-a71f-d6177637925c/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/519af3eac85c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.48
Link:
https://yomi.yoroi.company/submissions/519af3eac85cd7c6ab35d18010103a00caf8b27e5d0bb734319dcea18104f6db

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: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.

Malspam

Formbook

Executable exe 519af3eac85cd7c6ab35d18010103a00caf8b27e5d0bb734319dcea18104f6db

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/390961/

Comments