MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 67873f2ddd6bc277bea8dd92d6f5df68b66bfff8a37061206a9bac74a29cf0cd. 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 7 File information Comments
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SHA256 hash: 67873f2ddd6bc277bea8dd92d6f5df68b66bfff8a37061206a9bac74a29cf0cd
SHA3-384 hash: 836552183995dad80f03589ff21551e72d85f60ac3d1ee86cb3003dbb8e0e9e05e76e9a5e2a8d039fd62873e33d0d03a
SHA1 hash: 79664f747f8da0fa2ddf283b8a3a2475d1195718
MD5 hash: 5c815605b4e3ca28ed859cc839fdd0b4
humanhash: washington-sodium-fix-colorado
File name:cuenta de factura_0135_Pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:775'680 bytes
First seen:2025-05-14 14:34:51 UTC
Last seen:2025-05-14 15:40:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'642 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:FKDqJjKDp6zspAafKVDkrvPPyFeytKNOlWqsR+Oz4UQnkg0u9HwWfEhUBo:FOqFKledVQ7yvKEWqMxFzgDHwn
TLSH T18DF4F158376ADB07C4B64BF80D22D2B587B6AE9EA821D3038DD67EDFB631B401854353
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
dhash icon 443071f4c8cc004c (4 x Formbook, 1 x MassLogger, 1 x SnakeKeylogger)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
464
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
cuenta de factura_0135_Pdf.exe
Verdict:
No threats detected
Analysis date:
2025-05-14 15:42:26 UTC
Tags:
netreactor
Link:
https://app.any.run/tasks/fd0070e6-f2ae-4715-8e02-6e04838e008a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.32562.28496.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6824ac79e16384d6a7046cbd
Tags:
virus krypt msil
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/6824aa360e639896258411ef/reports/3c147899-608f-4c20-8440-e28ebadf0d25/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/67873f2ddd6bc277bea8dd92d6f5df68b66bfff8a37061206a9bac74a29cf0cd
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0e64aea1-cbe0-48db-b4b6-204fccf29127
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1690091
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Found direct / indirect Syscall (likely to bypass EDR)
Initial sample is a PE file and has a suspicious name
Joe Sandbox ML detected suspicious sample
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
Queues an APC in another process (thread injection)
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1690091 Sample: cuenta de factura_0135_Pdf.exe Startdate: 14/05/2025 Architecture: WINDOWS Score: 100 35 www.qimi10.xyz 2->35 37 www.decentral.business 2->37 39 2 other IPs or domains 2->39 49 Suricata IDS alerts for network traffic 2->49 51 Antivirus / Scanner detection for submitted sample 2->51 53 Multi AV Scanner detection for submitted file 2->53 57 5 other signatures 2->57 11 cuenta de factura_0135_Pdf.exe 3 2->11         started        signatures3 55 Performs DNS queries to domains with low reputation 35->55 process4 file5 33 C:\...\cuenta de factura_0135_Pdf.exe.log, ASCII 11->33 dropped 14 cuenta de factura_0135_Pdf.exe 11->14         started        process6 signatures7 69 Maps a DLL or memory area into another process 14->69 17 aUml50ElAFN1wS8eLtD.exe 14->17 injected process8 signatures9 47 Found direct / indirect Syscall (likely to bypass EDR) 17->47 20 convert.exe 13 17->20         started        process10 signatures11 59 Tries to steal Mail credentials (via file / registry access) 20->59 61 Tries to harvest and steal browser information (history, passwords, etc) 20->61 63 Modifies the context of a thread in another process (thread injection) 20->63 65 3 other signatures 20->65 23 aUml50ElAFN1wS8eLtD.exe 20->23 injected 27 chrome.exe 20->27         started        29 firefox.exe 20->29         started        process12 dnsIp13 41 www.decentral.business 198.58.118.167, 49695, 80 LINODE-APLinodeLLCUS United States 23->41 43 huhu666.rh2lqcbqssfb.com 23.248.229.198, 49701, 49702, 49703 CNSERVERSUS United States 23->43 45 www.qimi10.xyz 35.241.50.71, 49697, 49698, 49699 GOOGLEUS United States 23->45 67 Found direct / indirect Syscall (likely to bypass EDR) 23->67 31 WerFault.exe 4 27->31         started        signatures14 process15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/67873f2ddd6bc277bea8dd92d6f5df68b66bfff8a37061206a9bac74a29cf0cd
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/67873f2ddd6bc277bea8dd92d6f5df68b66bfff8a37061206a9bac74a29cf0cd/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-05-14 14:06:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=m6dt6lo5npbhppvi3wjnn5o7nc3gx77yunygcidktowhjiu46dgq._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/250514-rx7mqsxr17/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/9d10a34c-8315-424d-be78-25d4a630a436
Unpacked files
SH256 hash:
67873f2ddd6bc277bea8dd92d6f5df68b66bfff8a37061206a9bac74a29cf0cd
MD5 hash:
5c815605b4e3ca28ed859cc839fdd0b4
SHA1 hash:
79664f747f8da0fa2ddf283b8a3a2475d1195718
Link:
https://www.unpac.me/results/1334da17-5b7f-4ad7-a316-e742fdac5a25/
SH256 hash:
22a03f25544fecf96ca7f38781824e302238529b6e59cc10cfecf240043bd294
MD5 hash:
bee219cadf5a780865c3548d9936bc38
SHA1 hash:
077405987d76832010142540e3f9c5fc1f1c314a
Link:
https://www.unpac.me/results/1334da17-5b7f-4ad7-a316-e742fdac5a25/
SH256 hash:
ef13c12603ce9354bef6a725d2dc612858ac814dd8f6529dcf9de669cdce0305
MD5 hash:
3d5c1db47b8953c464a72036c7d498b8
SHA1 hash:
2197a7965b60b41793216455c0eacfe8a36434d6
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/1334da17-5b7f-4ad7-a316-e742fdac5a25/
SH256 hash:
f1daed29df2b753e1e48affdf3a0106e4041abbb76d3c9b70ecb2ad4d166549d
MD5 hash:
37e5b36dd8d642c8de764190a7d0893f
SHA1 hash:
f4e6c71f9dcf2a319e726dec758a0b497773f679
Link:
https://www.unpac.me/results/1334da17-5b7f-4ad7-a316-e742fdac5a25/
SH256 hash:
1e18bbca735f59661285599cfb27fb76265dc2872c02bef9ee5fb76aea4617d8
MD5 hash:
315235f7432f36fbc030b0f1b6faba4f
SHA1 hash:
27f3e43514381a7c76346b3ed3f7bcf6eb932216
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/1334da17-5b7f-4ad7-a316-e742fdac5a25/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/67873f2ddd6b/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/67873f2ddd6bc277bea8dd92d6f5df68b66bfff8a37061206a9bac74a29cf0cd

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:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
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
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 67873f2ddd6bc277bea8dd92d6f5df68b66bfff8a37061206a9bac74a29cf0cd

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments