MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cba5a4c3813bbce1dfd6591d94bdd59e773c33d06d4a534da0b3cb527f0a9f7b. 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 8 File information Comments
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SHA256 hash: cba5a4c3813bbce1dfd6591d94bdd59e773c33d06d4a534da0b3cb527f0a9f7b
SHA3-384 hash: 6c13020166bd264f7abf7c2dce31524792ac71187e4ec3ca64dcf0730f586718905e1499a5ced9fcb982a2e5f92c0963
SHA1 hash: 15350c3cde5c318bb9a4972aca9bc46cbbde0fac
MD5 hash: 53caeb10cf0f802ec7597cff67bc9a13
humanhash: video-dakota-monkey-bulldog
File name:invoices againts details PO ref below.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:843'272 bytes
First seen:2025-08-20 12:27:57 UTC
Last seen:2025-09-05 12:53:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:n7IgdXoEZLZsK480IeBdw01+DlM2I+vifF+8BmJLMUdwVM3oWrFf9MFxzjchan2i:xnZmK79Ad8JMzrkJLMRO3drFlMjjD
Threatray 320 similar samples on MalwareBazaar
TLSH T1D805CF9C3250B99FC853DA7289A4DD74AA206DAB5707D20390E71DEFBD0CA97CF141E2
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 lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
4
# of downloads :
79
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
2461866e398ca1b36a100b480a67595dad0f3858b7fbb0c85982c4230ed7f8a3.zip
Verdict:
Malicious activity
Analysis date:
2025-08-19 16:49:56 UTC
Tags:
arch-exec netreactor stealer formbook xloader
Link:
https://app.any.run/tasks/bbccf7f9-641f-47ea-8d91-73143301bbe2

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/22467/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.77147071.2681.8090.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68a5bf758fd55a79c5296ca8
Tags:
virus spawn shell
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Launching a process
Creating a file
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
confuserex confuserex expired-cert invalid-signature masquerade obfuscated obfuscated packed signed vbnet
Link:
https://www.filescan.io/uploads/68a5c052a4bdac9f5ba0a9ea/reports/3a8928e7-f607-4034-87cb-38564dbeffa0/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/cba5a4c3813bbce1dfd6591d94bdd59e773c33d06d4a534da0b3cb527f0a9f7b
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/dd29fd80-10a3-4192-a863-bd9f936b11ba
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1760975
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1760975 Sample: invoices againts details PO... Startdate: 20/08/2025 Architecture: WINDOWS Score: 100 38 www.vitelo.xyz 2->38 40 www.sanduk.xyz 2->40 42 17 other IPs or domains 2->42 50 Suricata IDS alerts for network traffic 2->50 52 Antivirus / Scanner detection for submitted sample 2->52 54 Multi AV Scanner detection for submitted file 2->54 58 8 other signatures 2->58 11 invoices againts details PO ref below.exe 4 2->11         started        signatures3 56 Performs DNS queries to domains with low reputation 40->56 process4 file5 36 invoices againts d...O ref below.exe.log, ASCII 11->36 dropped 68 Writes to foreign memory regions 11->68 70 Allocates memory in foreign processes 11->70 72 Adds a directory exclusion to Windows Defender 11->72 74 Injects a PE file into a foreign processes 11->74 15 MSBuild.exe 11->15         started        18 powershell.exe 23 11->18         started        signatures6 process7 signatures8 76 Maps a DLL or memory area into another process 15->76 20 yBYhoVeVKCY9LI.exe 15->20 injected 78 Loading BitLocker PowerShell Module 18->78 22 conhost.exe 18->22         started        process9 process10 24 net1.exe 13 20->24         started        signatures11 60 Tries to steal Mail credentials (via file / registry access) 24->60 62 Tries to harvest and steal browser information (history, passwords, etc) 24->62 64 Modifies the context of a thread in another process (thread injection) 24->64 66 3 other signatures 24->66 27 IcjPSeRwIW.exe 24->27 injected 30 chrome.exe 24->30         started        32 firefox.exe 24->32         started        process12 dnsIp13 44 www.rtpcnd.club 103.224.182.242, 49743, 49744, 49745 TRELLIAN-AS-APTrellianPtyLimitedAU Australia 27->44 46 www.vitelo.xyz 159.198.74.151, 49735, 49736, 49737 CAT-IDC-4BYTENET-AS-APCATTELECOMPublicCompanyLtdCATT United States 27->46 48 4 other IPs or domains 27->48 34 WerFault.exe 4 30->34         started        process14
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/cba5a4c3813bbce1dfd6591d94bdd59e773c33d06d4a534da0b3cb527f0a9f7b
Verdict:
inconclusive
YARA:
12 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.83 Win 32 Exe x86
Link:
https://app.malva.re/file/53caeb10cf0f802ec7597cff67bc9a13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cba5a4c3813bbce1dfd6591d94bdd59e773c33d06d4a534da0b3cb527f0a9f7b/
Threat name:
Win32.Trojan.Egairtigado
Create hunting rule
Status:
Malicious
First seen:
2025-08-19 14:35:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
28 of 38 (73.68%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zos2jq4bho6odx6wleozjpovtz3tym6qnvffgtnawpfve7ykt55q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unc_loader_037
Create hunting rule
Similar samples:
120449b84850ba5b41e73f85e2f178271dd1cd0b8743f1e5af6ef760aa39b199
Formbook
1f3fa2be48b42d1aea6fdf4c2cf9bc8de2bdee0db74214aee951081b611fdbd7
Formbook
2c35c24bdd434cf329bb45dce96e7499cdd231f182c9e679a01770fc006aac69
Formbook
394052f1b64477e13f76845563cb611aaeb78fc8a153f262ec44326c9606d2c0
Formbook
784ce0e82c852d420792062fc2370bfed13b8b846bbc126bfd5f6e3f5d1a2c67
Formbook
aaa5b20a90d1f1755d39e6e228f8d4a4060d9da1451d9dd54a6e85fa2dd9ceef
Formbook
b27f17a52b7a491a0887307a8e4984f283b8076c1e49d535863068c51758c8bc
Formbook
b8a9598e5ab9a3cc65d1e011d01223128c6e6ce2dafe3409d33ac212a5192b82
Formbook
ce6fbf350e4ac03e03c66b9d4d8547e2bc6856a0aa343e771c9a63c3e55cf91b
Formbook
error
Formbook
+ 310 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook defense_evasion discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/250820-pp9e9asxf1/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Modifies trusted root certificate store through registry
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/6e4a4ccf-2dbd-418c-8e54-cf7c74dce03f
Unpacked files
SH256 hash:
cba5a4c3813bbce1dfd6591d94bdd59e773c33d06d4a534da0b3cb527f0a9f7b
MD5 hash:
53caeb10cf0f802ec7597cff67bc9a13
SHA1 hash:
15350c3cde5c318bb9a4972aca9bc46cbbde0fac
Link:
https://www.unpac.me/results/34e23a65-3ff5-4665-9905-5d780dbeb5a1/
SH256 hash:
27e5ffda53751e7360f380bd82a3176a7875a555f6af5b130fb2d64ff776c895
MD5 hash:
68845a1d0f6c65bb7ecc09ca76d2f005
SHA1 hash:
0145c4314c2cf41ae583bb32784fe780c1cdaf1d
Link:
https://www.unpac.me/results/34e23a65-3ff5-4665-9905-5d780dbeb5a1/
SH256 hash:
c6d60625cf125f8667269925e9845d37d979a101cc7143590bd1dd28a654e6e2
MD5 hash:
51734f0ed37a35ac3b2bfbf539d35ffb
SHA1 hash:
cd569180511ec590b545ef8d130ad92d85dacf44
Link:
https://www.unpac.me/results/34e23a65-3ff5-4665-9905-5d780dbeb5a1/
SH256 hash:
16bb77cb0299b09d81f2bcc37f7aba7f68e82c1b23ae254ca0beca5a86345213
MD5 hash:
3d362f9bca0010a58bd5db13d4804dd3
SHA1 hash:
d438354f3b50dde0d1a5771f4bacaeedbb043817
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/34e23a65-3ff5-4665-9905-5d780dbeb5a1/
SH256 hash:
4efc01815ab9747b68da96a4d58fd7f3b6d4aca06dc4cb3366aed463e8110f19
MD5 hash:
95af901afeb2aac05639a60a4e5a5a4c
SHA1 hash:
09035e7277e2686ef6431714b8d8516944079ee3
Link:
https://www.unpac.me/results/34e23a65-3ff5-4665-9905-5d780dbeb5a1/
Malware family:
zgRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/cba5a4c3813b/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/cba5a4c3813bbce1dfd6591d94bdd59e773c33d06d4a534da0b3cb527f0a9f7b

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:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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 cba5a4c3813bbce1dfd6591d94bdd59e773c33d06d4a534da0b3cb527f0a9f7b

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/22467/

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

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