MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2536c05dded3cf40d26eb14df1ccb4cd7f3644a585e1a973a1b1e5bb48d5ddf8. 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: 16


Intelligence 16 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2536c05dded3cf40d26eb14df1ccb4cd7f3644a585e1a973a1b1e5bb48d5ddf8
SHA3-384 hash: fbabf256f7ba0f1ba0f5a33c0112d698c7cbccc5239702b27e1a9fecdabfd7e5059f1a76100ae1ee81c988f5a1d2f6c8
SHA1 hash: 22ca6d4ae0300e43ae36f1bd41eb873c55332ba9
MD5 hash: 38fbc7170007c64781fcece999eb6957
humanhash: aspen-alpha-black-winner
File name:PO.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:934'912 bytes
First seen:2025-06-09 14:26:37 UTC
Last seen:2025-06-10 07:00:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:6EJ6/YSIOzYydQLxHEwMQBQSsROrk14xUCz:G/YS4oQLxHEwxQnErWUx
Threatray 3'900 similar samples on MalwareBazaar
TLSH T1C515D040B7627193C2BD337318E9D1BC097A1EE85E08BA11B6C7ADB3B8D961903393D5
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 b2b68cb2b28cb6b2 (4 x Formbook, 2 x AgentTesla)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
463
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
backup-message-10.211.5.132_9045-13360529.eml
Verdict:
Malicious activity
Analysis date:
2025-06-09 12:57:46 UTC
Tags:
attachments attc-arch arch-exec
Link:
https://app.any.run/tasks/3b72af09-399b-45fa-902a-9aa289c20d92

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/8110/
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.28746.27474.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6846efe98bd5d68a12e71549
Tags:
virus msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/2536c05dded3cf40d26eb14df1ccb4cd7f3644a585e1a973a1b1e5bb48d5ddf8
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/98951f36-5b48-4a9b-9887-8533d0e1b8c1
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1709755
Signature
.NET source code contains potential unpacker
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)
Uses threadpools to delay analysis
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1709755 Sample: PO.exe Startdate: 09/06/2025 Architecture: WINDOWS Score: 100 36 www.trainedtalents.xyz 2->36 38 www.yvlw.studio 2->38 40 6 other IPs or domains 2->40 48 Suricata IDS alerts for network traffic 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 Yara detected FormBook 2->52 56 3 other signatures 2->56 11 PO.exe 3 2->11         started        signatures3 54 Performs DNS queries to domains with low reputation 36->54 process4 file5 34 C:\Users\user\AppData\Local\...\PO.exe.log, ASCII 11->34 dropped 66 Uses threadpools to delay analysis 11->66 15 PO.exe 11->15         started        18 PO.exe 11->18         started        signatures6 process7 signatures8 68 Maps a DLL or memory area into another process 15->68 20 hCGOvVla.exe 15->20 injected process9 process10 22 isoburn.exe 13 20->22         started        signatures11 58 Tries to steal Mail credentials (via file / registry access) 22->58 60 Tries to harvest and steal browser information (history, passwords, etc) 22->60 62 Modifies the context of a thread in another process (thread injection) 22->62 64 3 other signatures 22->64 25 qdNyHTHqtjcp.exe 22->25 injected 28 chrome.exe 22->28         started        30 firefox.exe 22->30         started        process12 dnsIp13 42 sandwich.bet 84.32.84.32, 49693, 49694, 49695 NTT-LT-ASLT Lithuania 25->42 44 www.yvlw.studio 66.203.148.164, 49687, 80 DNC-ASDimensionNetworkCommunicationLimitedHK Hong Kong 25->44 46 2 other IPs or domains 25->46 32 WerFault.exe 4 28->32         started        process14
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/2536c05dded3cf40d26eb14df1ccb4cd7f3644a585e1a973a1b1e5bb48d5ddf8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2536c05dded3cf40d26eb14df1ccb4cd7f3644a585e1a973a1b1e5bb48d5ddf8/
Verdict:
Malicious
Link:
https://tip.neiki.dev/file/2536c05dded3cf40d26eb14df1ccb4cd7f3644a585e1a973a1b1e5bb48d5ddf8
Threat name:
Win32.Trojan.Egairtigado
Create hunting rule
Status:
Malicious
First seen:
2025-06-09 11:57:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=eu3maxo62phubutowfg7dtfuzv7tmrffqxq2s45bwhs3wsgv3x4a._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
formbook
Create hunting rule
Similar samples:
2536c05dded3cf40d26eb14df1ccb4cd7f3644a585e1a973a1b1e5bb48d5ddf8
Formbook
6b6bb5c659fbba869f5acc145f92694b1b50af82e1772d30377045e2be5601f4
Formbook
70e7f14115d0d8e51a9a097b9a0fdaf2a63bd04b642271abb83908b31989c71a
Formbook
bbe98f5455467226aa10e91db70f10b0b2cdf7f0d8ab07bba44aade384217a97
Formbook
dc8e0752010c76c6815c5631eb656e8e8f179be1a794c5f6679e5072d6ffe496
Formbook
error
Formbook
+ 3'890 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/250609-rr9j5sgq7x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/1a3bae75-8bbb-4f81-8387-afe20dc0c528
Unpacked files
SH256 hash:
2536c05dded3cf40d26eb14df1ccb4cd7f3644a585e1a973a1b1e5bb48d5ddf8
MD5 hash:
38fbc7170007c64781fcece999eb6957
SHA1 hash:
22ca6d4ae0300e43ae36f1bd41eb873c55332ba9
Link:
https://www.unpac.me/results/4cda2095-e39a-47c3-82e3-67f95691bad1/
SH256 hash:
a5c0006918a2d8df2f655b5dce6edee5c8ac336010fad6fe0d8cb17be6aecc1c
MD5 hash:
c93f82cd577fe45d220533947f0785cd
SHA1 hash:
3dbad7da0b630e878fb83b0706eba6ed0779e48c
Link:
https://www.unpac.me/results/4cda2095-e39a-47c3-82e3-67f95691bad1/
SH256 hash:
73d405a642f4542361879d8a658b959d776f003631af6aa0a146790d9370f98e
MD5 hash:
4e95a6397f33157717280c555c16a9ad
SHA1 hash:
66ab5d1f9653caa59b470f7b90faa15add1da01c
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/4cda2095-e39a-47c3-82e3-67f95691bad1/
SH256 hash:
95d7bdec782b3bdc4d2f4aaf5038dc0c947dd48c064cb83201d0e560243314d8
MD5 hash:
6cb3d5ac5eff30c29e87ba0eaadfb99d
SHA1 hash:
76704ea5a47da6e9ef9eb5431d6fb97beabc8b87
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/4cda2095-e39a-47c3-82e3-67f95691bad1/
Parent samples :
2536c05dded3cf40d26eb14df1ccb4cd7f3644a585e1a973a1b1e5bb48d5ddf8
36dc014cdc1ee051b88eab111948730fdaaa261506d32e2013a34a2aaea0e647
dce9d5b49fc1ca7b64cfd19e6b1f66f92739a24b3cc4fd1661eb4d2f38541c8c
SH256 hash:
e696030eb106b0b8f92f7651cb9ad8270fa5e697ad04cab1a6cf7fddcb76f5a9
MD5 hash:
d87f49e8964d263c0834a1f8108b59a5
SHA1 hash:
859d6a68329f76d9b4681f1a1958ab83055195ab
Link:
https://www.unpac.me/results/4cda2095-e39a-47c3-82e3-67f95691bad1/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.97
Link:
https://yomi.yoroi.company/submissions/2536c05dded3cf40d26eb14df1ccb4cd7f3644a585e1a973a1b1e5bb48d5ddf8

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:botnet_plaintext_c2
Create hunting rule
Author:cip
Description:Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.
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 2536c05dded3cf40d26eb14df1ccb4cd7f3644a585e1a973a1b1e5bb48d5ddf8

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/8110/

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 (GUARD_CF)high

Comments