MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1a4a833905ed2b06f990054eee77c7f92d536d52797c6a18de6d1358e25e8e03. 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 1 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1a4a833905ed2b06f990054eee77c7f92d536d52797c6a18de6d1358e25e8e03
SHA3-384 hash: d8589f1436441eed380f4acb6ccbd1db593f6fe637a51fc8eb24ef976399e713180e71d200a95f652a69e88ab24bc014
SHA1 hash: fce9ea598fe363e63da978f73ffefecc4eb5d14a
MD5 hash: 903d5f8adb6f17e25f419df6db9c6a77
humanhash: dakota-maryland-early-sixteen
File name:903d5f8adb6f17e25f419df6db9c6a77
Download: download sample
Signature Formbook
Create hunting rule
File size:244'256 bytes
First seen:2023-08-15 12:31:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:/Ya6OwFfQ6gSHboaP+zYy2UMNXt2KCGkcAdw3ZXNyT:/YYwG6gSD6MNXt2v3zdwp9yT
Threatray 3'780 similar samples on MalwareBazaar
TLSH T1023412657BE0CC73C8531270483B2BB36BEE5A1137688B6B6784A616BD706E1C45F363
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
269
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
orderX#393405.xls
Verdict:
Malicious activity
Analysis date:
2023-08-15 11:13:43 UTC
Tags:
opendir loader exploit cve-2017-11882 formbook xloader
Link:
https://app.any.run/tasks/52ae69ed-f897-419d-b12c-44afb303865f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/442787/
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.18563.27182.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file
Unauthorized injection to a recently created process
Restart of the analyzed sample
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/102880/overview
Behaviour
MalwareBazaar
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/1a4a833905ed2b06f990054eee77c7f92d536d52797c6a18de6d1358e25e8e03
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/c4efa041-178c-4879-9429-057ba3fd05dd
Result
Threat name:
FormBook, NSISDropper
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1291409
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
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
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1291409 Sample: qhfsVF2oUF.exe Startdate: 15/08/2023 Architecture: WINDOWS Score: 100 32 www.vistcreative.com 2->32 34 vistcreative.com 2->34 48 Snort IDS alert for network traffic 2->48 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 8 other signatures 2->54 11 qhfsVF2oUF.exe 18 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\Local\...\fraza.dll, PE32 11->30 dropped 64 Detected unpacking (changes PE section rights) 11->64 66 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 11->66 68 Maps a DLL or memory area into another process 11->68 70 Tries to detect virtualization through RDTSC time measurements 11->70 15 qhfsVF2oUF.exe 11->15         started        signatures6 process7 signatures8 72 Modifies the context of a thread in another process (thread injection) 15->72 74 Maps a DLL or memory area into another process 15->74 76 Sample uses process hollowing technique 15->76 78 Queues an APC in another process (thread injection) 15->78 18 explorer.exe 4 6 15->18 injected process9 dnsIp10 36 www.fzturf.com 82.221.141.60, 49773, 80 THORDC-ASIS Iceland 18->36 38 b2b-scaling.com 15.197.142.173, 49765, 49771, 80 TANDEMUS United States 18->38 40 16 other IPs or domains 18->40 56 System process connects to network (likely due to code injection or exploit) 18->56 22 control.exe 12 18->22         started        signatures11 process12 dnsIp13 42 www.sx15k.com 22->42 44 web.dl31.vhostgo.com 22->44 46 2 other IPs or domains 22->46 58 Modifies the context of a thread in another process (thread injection) 22->58 60 Maps a DLL or memory area into another process 22->60 62 Tries to detect virtualization through RDTSC time measurements 22->62 26 cmd.exe 1 22->26         started        signatures14 process15 process16 28 conhost.exe 26->28         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1a4a833905ed2b06f990054eee77c7f92d536d52797c6a18de6d1358e25e8e03/
Threat name:
Win32.Trojan.Casdet
Create hunting rule
Status:
Malicious
First seen:
2023-08-15 11:31:18 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=djfigoif5uvqn6mqavho456h7ewvg3kspf6gugg6nujvrys6rybq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
09bf94af5ceabc708551e3bf599d3d94c8b3ced7606f2018c506cfc9b5a21710
Formbook
1575cbe53742e3339cfd530c0599d1868a41dbca3705fd7ded32302fcdf6ed26
Formbook
1a82b5f2c6d3897569544939dfae30457d05924c8811f009d0cd1540319ea90c
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4061f4ecc5f9ea83a7f8f3c084b3999dae002d26c1dc62d7ddecd2c5f21a26c2
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85176443ab1c87d4387378979a276b860b6306e6ae17749d0a1072111cc14a1b
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8e1579332c108b91cf104ac63a80be9cabcd918086bcd27248e59467776fc863
Formbook
9bc85e2d8b9379ab4b4a7a165602aa01a3251bd131a10d3cc67f494c3a46aced
Formbook
ab81345f141fa4d777d142a4f8367c53e9840897bc2b4c3299a4f6696a46296d
Formbook
cc2ffcb49e5ff1b4f1be2c0c8f5bef3cf51caeef5fcd8be8a6367174b7dd8063
Formbook
e3643d141c0e87b3304f3b015f1e8dbbbe273e9a8bb93906991fe61a3073f891
Formbook
+ 3'770 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:sy22 rat spyware stealer trojan
Link:
https://tria.ge/reports/230815-pp3ygaaf98/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
1a4a833905ed2b06f990054eee77c7f92d536d52797c6a18de6d1358e25e8e03
MD5 hash:
903d5f8adb6f17e25f419df6db9c6a77
SHA1 hash:
fce9ea598fe363e63da978f73ffefecc4eb5d14a
Link:
https://www.unpac.me/results/d9eb1248-82bb-4da3-ba24-047535e43d50/
Please note that we are no longer able to provide a coverage score for Virus Total.

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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

Web download

Formbook

Executable exe 1a4a833905ed2b06f990054eee77c7f92d536d52797c6a18de6d1358e25e8e03

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2704672/
Cape
Cape
https://www.capesandbox.com/analysis/442787/

Comments


Avatar
zbet commented on 2023-08-15 12:31:02 UTC

url : hxxp://192.3.193.171/950/Chromium.exe