MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c1a1ea671c0c3123d70cb864680bebfa1c151ed303514c2bd77347cec44dd9a. 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: 17


Intelligence 17 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3c1a1ea671c0c3123d70cb864680bebfa1c151ed303514c2bd77347cec44dd9a
SHA3-384 hash: d0318ad6c777c01698de525a41ff30d97d960fc6c3a52e9cf1d8a9d07a3934be7481f45f318bc25e30a0e9c1c5af33df
SHA1 hash: 122900d222462af3b0c378e14d31720d5cd2be72
MD5 hash: 434df8e423234fbd39402dba48b2a9a9
humanhash: zebra-sink-avocado-july
File name:Readiness for Reference THE6270-1.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:794'112 bytes
First seen:2025-09-11 22:53:48 UTC
Last seen:2025-10-10 06:23:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:RKqOZQ8HNDtBUZ8bGycYf68RZFrWr0OObp1D3w/D3gd4VQ1YTjUYL/Fr:URQ0bA6cYykZW0x3cy0Q+YYL/
TLSH T1BAF402181259CA02E1764FF51A32E2B41FB96E99E801E70B8FC67DDF7836B409A41793
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
136
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Readiness for Reference THE6270-1.exe
Verdict:
No threats detected
Analysis date:
2025-09-11 22:54:23 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/85241f8e-c3f1-4ac2-ab00-57f087f54bc8

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/27008/
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.16416.15457.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68c35312b20052598879e6c1
Tags:
n/a
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
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/68c3531cdbc6f5a29c40d6da/reports/c90db6cd-1bd6-4f99-b9f1-c857da62c0e4/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/3c1a1ea671c0c3123d70cb864680bebfa1c151ed303514c2bd77347cec44dd9a
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-11T04:01:00Z UTC
Last seen:
2025-09-11T04:01:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/3c1a1ea671c0c3123d70cb864680bebfa1c151ed303514c2bd77347cec44dd9a/results?tab=lookup
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8bb235bc-bcd7-4dcf-adec-687c93a7b2eb
Result
Threat name:
FormBook, XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1776029
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious 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
Performs DNS queries to domains with low reputation
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1776029 Sample: Readiness for Reference THE... Startdate: 12/09/2025 Architecture: WINDOWS Score: 100 46 www.ecpay-tw067.xyz 2->46 48 www.78452609.xyz 2->48 50 20 other IPs or domains 2->50 60 Suricata IDS alerts for network traffic 2->60 62 Found malware configuration 2->62 64 Malicious sample detected (through community Yara rule) 2->64 68 12 other signatures 2->68 11 Readiness for Reference THE6270-1.exe 3 2->11         started        15 DellUpdate.exe 1 2->15         started        17 DellUpdate.exe 2->17         started        signatures3 66 Performs DNS queries to domains with low reputation 48->66 process4 file5 42 Readiness for Refe...e THE6270-1.exe.log, ASCII 11->42 dropped 80 Injects a PE file into a foreign processes 11->80 19 Readiness for Reference THE6270-1.exe 11->19         started        82 Antivirus detection for dropped file 15->82 signatures6 process7 signatures8 70 Maps a DLL or memory area into another process 19->70 22 OXAx2Meze.exe 19->22 injected process9 dnsIp10 52 sidekickcontacts.info 156.229.109.21, 49763, 49764, 49765 POWERLINE-AS-APPOWERLINEDATACENTERHK Seychelles 22->52 54 www.suvorr.tokyo 46.37.111.21, 49734, 49735, 49736 Y-INTERNETGB Spain 22->54 56 9 other IPs or domains 22->56 25 proquota.exe 15 22->25         started        process11 file12 40 C:\Users\user\AppData\Local\...\ntcp5nyx.exe, PE32 25->40 dropped 72 Tries to steal Mail credentials (via file / registry access) 25->72 74 Tries to harvest and steal browser information (history, passwords, etc) 25->74 76 Modifies the context of a thread in another process (thread injection) 25->76 78 2 other signatures 25->78 29 ntcp5nyx.exe 1 6 25->29         started        34 chrome.exe 25->34         started        36 firefox.exe 25->36         started        signatures13 process14 dnsIp15 58 45.138.48.85, 1177, 49747 ASDETUKhttpwwwheficedcomGB Germany 29->58 44 C:\Users\user\AppData\...\DellUpdate.exe, PE32 29->44 dropped 84 Antivirus detection for dropped file 29->84 86 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 29->86 38 WerFault.exe 4 34->38         started        file16 signatures17 process18
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3c1a1ea671c0c3123d70cb864680bebfa1c151ed303514c2bd77347cec44dd9a
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.36 Win 32 Exe x86
Link:
https://app.malva.re/file/434df8e423234fbd39402dba48b2a9a9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3c1a1ea671c0c3123d70cb864680bebfa1c151ed303514c2bd77347cec44dd9a/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-09-11 09:16:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hqnb5jtrydbreplqzodenaf6x6q4cupnga2rjqv5o42hz3ce3wna._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unc_loader_037
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/250911-2vlbtsck81/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f23a5a6c-b774-4dea-88ef-c0ef17abc013
Unpacked files
SH256 hash:
4a8af9946518b7adfabab291dccfa4f3e27acac1ef07d4f8a69ebb488994bac1
MD5 hash:
56c90d081546763ea9a07679d338a4bc
SHA1 hash:
344a336b0717e7dd13e8afe573c54bde42947281
Link:
https://www.unpac.me/results/665e39d4-12d2-4205-95f3-c3f90fe13744/
SH256 hash:
8bb50dfbf69cfba214f8274324807709223406da645d56844323ccb2d3ce4984
MD5 hash:
5220db9d4456675f4b1ba91a7d9538f0
SHA1 hash:
a1a28709230b3b3aff3d337d7ec4fa5fe3af844f
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/665e39d4-12d2-4205-95f3-c3f90fe13744/
SH256 hash:
0b7cdf9dbe6f165393c87acaad5aa65e6882b9d5c54550ef3c597737e0ad32ff
MD5 hash:
7e4ca1b335ac6a61c1477a46e04dbaad
SHA1 hash:
a2ca1a9641a0ddc668c93f5f89eac2b67ecd0f8e
Link:
https://www.unpac.me/results/665e39d4-12d2-4205-95f3-c3f90fe13744/
SH256 hash:
4a6dff6b96cfe65bbcf689dacf26d62aa5f582a5c62c5772e1dcd8d97a444f57
MD5 hash:
3dd86b822301a8d6374ad1c7ed969d66
SHA1 hash:
3383b3170854c6c805cb96f9b0428f32e476957f
Link:
https://www.unpac.me/results/665e39d4-12d2-4205-95f3-c3f90fe13744/
SH256 hash:
3c1a1ea671c0c3123d70cb864680bebfa1c151ed303514c2bd77347cec44dd9a
MD5 hash:
434df8e423234fbd39402dba48b2a9a9
SHA1 hash:
122900d222462af3b0c378e14d31720d5cd2be72
Link:
https://www.unpac.me/results/665e39d4-12d2-4205-95f3-c3f90fe13744/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3c1a1ea671c0/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/3c1a1ea671c0c3123d70cb864680bebfa1c151ed303514c2bd77347cec44dd9a

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
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
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Malspam

Formbook

Executable exe 3c1a1ea671c0c3123d70cb864680bebfa1c151ed303514c2bd77347cec44dd9a

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/27008/

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