MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 78e8787616a4d7be2eb5c127e75e3326de2c3e2dbf2a2533163f9594c0214b16. 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: 19


Intelligence 19 IOCs YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 78e8787616a4d7be2eb5c127e75e3326de2c3e2dbf2a2533163f9594c0214b16
SHA3-384 hash: d2072dd72a4e916d435b1d1be4907f8ccf67c1e432874dbd905b9198ed503a388f9336ec77fe4542be9b2980486359a5
SHA1 hash: 45ee3cf5a16ed7770a9e78bc2d09294128a38e6c
MD5 hash: dc33f885728b308c7159ffd95a728331
humanhash: finch-speaker-illinois-mountain
File name:Payment Copy88382pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:702'976 bytes
First seen:2025-02-04 14:15:00 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:5RYpw+u2yCIxGFvNUuqjL8nk3iS7bbRVXMGeUbE0X2tpXEe2nBeZ5O6suWb3L/KF:Q91IQNNUbonqnTX9eUA0XAUeiE2
Threatray 642 similar samples on MalwareBazaar
TLSH T1C1E4124DAB556D3ACB390577E4633C096271802EEA95F1FF1CC65CE84EA13E8CC1B896
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
File icon (PE):PE icon
dhash icon e0e698a08088a888 (20 x Formbook, 6 x AgentTesla, 3 x SnakeKeylogger)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
495
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Payment Copy88382pdf.exe
Verdict:
Suspicious activity
Analysis date:
2025-02-04 14:19:30 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/156a8b4f-c2d7-47ef-b9d6-f3598ed82e54

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67a221e951193558eb195c14
Tags:
shell virus sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a file
Launching cmd.exe command interpreter
Setting browser functions hooks
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade obfuscated obfuscated obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/67a220fd18ab0d173f4144dd/reports/4d2d4993-41ec-4bef-8aa0-0e544fb369ad/overview
Verdict:
Malicious
Labled as:
Genie.8DN.Generic
Link:
https://www.hybrid-analysis.com/sample/78e8787616a4d7be2eb5c127e75e3326de2c3e2dbf2a2533163f9594c0214b16
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/bb773e03-44ef-496e-899a-0c0648b85921
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1606528
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
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
Machine Learning detection for dropped file
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Query firmware table information (likely to detect VMs)
Queues an APC in another process (thread injection)
Reads the DNS cache
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1606528 Sample: Payment Copy88382pdf.exe Startdate: 04/02/2025 Architecture: WINDOWS Score: 100 70 www.zliving.xyz 2->70 72 www.talezoom.asia 2->72 74 6 other IPs or domains 2->74 80 Found malware configuration 2->80 82 Malicious sample detected (through community Yara rule) 2->82 84 Antivirus detection for URL or domain 2->84 88 13 other signatures 2->88 11 Payment Copy88382pdf.exe 7 2->11         started        15 CeKWKoi.exe 5 2->15         started        17 explorer.exe 2->17         started        signatures3 86 Performs DNS queries to domains with low reputation 70->86 process4 file5 62 C:\Users\user\AppData\Roaming\CeKWKoi.exe, PE32 11->62 dropped 64 C:\Users\user\...\CeKWKoi.exe:Zone.Identifier, ASCII 11->64 dropped 66 C:\Users\user\AppData\Local\...\tmp84FD.tmp, XML 11->66 dropped 68 C:\Users\...\Payment Copy88382pdf.exe.log, ASCII 11->68 dropped 108 Writes to foreign memory regions 11->108 110 Allocates memory in foreign processes 11->110 112 Adds a directory exclusion to Windows Defender 11->112 19 RegSvcs.exe 11->19         started        22 powershell.exe 23 11->22         started        24 powershell.exe 23 11->24         started        30 2 other processes 11->30 114 Multi AV Scanner detection for dropped file 15->114 116 Machine Learning detection for dropped file 15->116 118 Injects a PE file into a foreign processes 15->118 26 RegSvcs.exe 15->26         started        28 schtasks.exe 15->28         started        120 Query firmware table information (likely to detect VMs) 17->120 signatures6 process7 signatures8 90 Modifies the context of a thread in another process (thread injection) 19->90 92 Maps a DLL or memory area into another process 19->92 94 Sample uses process hollowing technique 19->94 96 Queues an APC in another process (thread injection) 19->96 32 explorer.exe 36 1 19->32 injected 98 Loading BitLocker PowerShell Module 22->98 35 conhost.exe 22->35         started        37 WmiPrvSE.exe 22->37         started        39 conhost.exe 24->39         started        100 Found direct / indirect Syscall (likely to bypass EDR) 26->100 41 conhost.exe 28->41         started        102 Tries to detect virtualization through RDTSC time measurements 30->102 43 conhost.exe 30->43         started        process9 signatures10 78 Uses ipconfig to lookup or modify the Windows network settings 32->78 45 ipconfig.exe 32->45         started        48 control.exe 32->48         started        50 WerFault.exe 32->50         started        process11 signatures12 122 Modifies the context of a thread in another process (thread injection) 45->122 124 Reads the DNS cache 45->124 126 Maps a DLL or memory area into another process 45->126 128 Switches to a custom stack to bypass stack traces 45->128 52 explorer.exe 45->52         started        56 cmd.exe 45->56         started        130 Tries to detect virtualization through RDTSC time measurements 48->130 process13 dnsIp14 76 a-0003.a-msedge.net 204.79.197.203, 443, 60131, 60135 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 52->76 104 System process connects to network (likely due to code injection or exploit) 52->104 106 Query firmware table information (likely to detect VMs) 52->106 58 WerFault.exe 52->58         started        60 conhost.exe 56->60         started        signatures15 process16
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/78e8787616a4d7be2eb5c127e75e3326de2c3e2dbf2a2533163f9594c0214b16
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/78e8787616a4d7be2eb5c127e75e3326de2c3e2dbf2a2533163f9594c0214b16/
Threat name:
Win32.Infostealer.Limitail
Create hunting rule
Status:
Malicious
First seen:
2025-02-04 06:57:19 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pduhq5qwutl34lvvyet6oxrte3pcyprnx4vckmywh6kzjqbbjmla._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unknown_loader_037
Create hunting rule
Similar samples:
10b78bea9f7acc71be5868fb39e4941c06ec08c4b0ea25b0957ec6b63fe37e20
Formbook
36c3f143edb273d0d6cd6738e0357ddc19b86857de46871ba96bcb1a8256b1ac
Formbook
683e3979cc09db086095cbe840901b82951df941ed461f89a67b98bd0ffe5ff9
Formbook
7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6
Formbook
error
Formbook
+ 632 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:b02a discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/250204-rkndbsznep/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
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
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f9cc8013-eef6-4d61-ae37-5da9a0be48f5
Unpacked files
SH256 hash:
78e8787616a4d7be2eb5c127e75e3326de2c3e2dbf2a2533163f9594c0214b16
MD5 hash:
dc33f885728b308c7159ffd95a728331
SHA1 hash:
45ee3cf5a16ed7770a9e78bc2d09294128a38e6c
Link:
https://www.unpac.me/results/1f489128-679b-4fb7-8505-cac848b91fc4/
SH256 hash:
147182c5608756bbb4dcf8606d3f0658b75a7bbe6a64a7f69c5ed08f16582f8a
MD5 hash:
2a85d258306cc22ebe2824f8b9497c5f
SHA1 hash:
35fef7a12bd1e4a62e09efda9131c0c32f8fd5e5
Link:
https://www.unpac.me/results/1f489128-679b-4fb7-8505-cac848b91fc4/
SH256 hash:
116434c2177f65324aec2b0f23b69a0d2628ef5e9e14868dc55dbc9842520ebd
MD5 hash:
8552cbfffd6d75ad4f82eb6f896867e5
SHA1 hash:
9120e114bc72c0a7864257a207c650d50aa21925
Link:
https://www.unpac.me/results/1f489128-679b-4fb7-8505-cac848b91fc4/
SH256 hash:
2b8dc97d92709ce0d927c1f252e6c9ccc3885592c7f9e1d5d244e3a3ebb5d036
MD5 hash:
5c65e55cdd63c7077a7c03cbad4d8873
SHA1 hash:
d862955ccb432ebadcc65348ea368701eff2838a
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/1f489128-679b-4fb7-8505-cac848b91fc4/
SH256 hash:
1e2d65deaa0270bc2a5322995fa4fb30d4bb516389f0c88072ae3da82b797d16
MD5 hash:
35fa5cceb118d6de06f5d00f28cd69c2
SHA1 hash:
8d3490476f3c267873d38f28f176537625d0257a
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/1f489128-679b-4fb7-8505-cac848b91fc4/
Parent samples :
5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4
467d77d35a6fc815ecbd60b0b320d7ca06e0f8a340c2c3285de4c0430517f8e7
36c3f143edb273d0d6cd6738e0357ddc19b86857de46871ba96bcb1a8256b1ac
10b78bea9f7acc71be5868fb39e4941c06ec08c4b0ea25b0957ec6b63fe37e20
78e8787616a4d7be2eb5c127e75e3326de2c3e2dbf2a2533163f9594c0214b16
8e06ed422edfc7904592e8c8cdacebd0ad5118c4b3dcb3daa404e8e4d97f6e5a
e9a1f5e4de3dfdf6cbd66863a6fa6a638cce8fa9555991756820b5af48682c79
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/78e8787616a4/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/78e8787616a4d7be2eb5c127e75e3326de2c3e2dbf2a2533163f9594c0214b16

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:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
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:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
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 78e8787616a4d7be2eb5c127e75e3326de2c3e2dbf2a2533163f9594c0214b16

(this sample)

  
Delivery method
Distributed via e-mail attachment

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 (HIGH_ENTROPY_VA)high

Comments