MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c1a4f385aa783b280e78aa0b7e8e5619f319f5dc4ee4d76e6c2bc6c2d079204c. 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: c1a4f385aa783b280e78aa0b7e8e5619f319f5dc4ee4d76e6c2bc6c2d079204c
SHA3-384 hash: b40517b1c397fefe2d12aa0a4f1462f19cf1ad000ac7ff0cdad59bcea2886258a0b3f05e45295490c8410682c00b0641
SHA1 hash: 4806a73deab6b861327447cd1847003e1cac5cf1
MD5 hash: bb42598e11c2ce34a4fb31ff91bd135f
humanhash: spring-item-spaghetti-massachusetts
File name:file.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:799'744 bytes
First seen:2025-02-05 07:18:01 UTC
Last seen:2025-02-05 08:57:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:/YwtLjswecl9sOgzIjGYv7uauZTrz96/CFlA31RvTWrnxVQxeApnbqCvNy5nV:wwebsjUZTrpl03vI/8tpnQ5
Threatray 5 similar samples on MalwareBazaar
TLSH T15105E1D43B7AA716DE6669309935EDB412B91DACB000F9E71EDD3B4B78AD2106D0CF02
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 abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
462
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file.exe
Verdict:
No threats detected
Analysis date:
2025-02-05 08:04:50 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/245e1d08-846d-4c98-bef9-12b791e96292

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.BackDoor.AgentTeslaNET.35.18818.20278.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67a3123c2dcee78dd81973c8
Tags:
shell virus msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Adding an exclusion to Microsoft Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/67a310c0190d34a1af08f1d3/reports/24526401-34f9-4596-bbc9-ab5e0aeaf64c/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/c1a4f385aa783b280e78aa0b7e8e5619f319f5dc4ee4d76e6c2bc6c2d079204c
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/54bb631f-6e96-4314-b16d-542602485744
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1607197
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Machine Learning detection for 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)
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)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1607197 Sample: file.exe Startdate: 05/02/2025 Architecture: WINDOWS Score: 100 37 www.autonomousrich.xyz 2->37 39 www.031235246.xyz 2->39 41 7 other IPs or domains 2->41 49 Suricata IDS alerts for network traffic 2->49 51 Antivirus detection for URL or domain 2->51 53 Multi AV Scanner detection for submitted file 2->53 57 6 other signatures 2->57 10 file.exe 4 2->10         started        signatures3 55 Performs DNS queries to domains with low reputation 39->55 process4 file5 35 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 10->35 dropped 69 Adds a directory exclusion to Windows Defender 10->69 14 file.exe 10->14         started        17 powershell.exe 23 10->17         started        signatures6 process7 signatures8 71 Maps a DLL or memory area into another process 14->71 19 a9BWks9aYd2yJQQMy.exe 14->19 injected 73 Loading BitLocker PowerShell Module 17->73 22 conhost.exe 17->22         started        24 WmiPrvSE.exe 17->24         started        process9 signatures10 59 Found direct / indirect Syscall (likely to bypass EDR) 19->59 26 SndVol.exe 13 19->26         started        process11 signatures12 61 Tries to steal Mail credentials (via file / registry access) 26->61 63 Tries to harvest and steal browser information (history, passwords, etc) 26->63 65 Modifies the context of a thread in another process (thread injection) 26->65 67 3 other signatures 26->67 29 a9BWks9aYd2yJQQMy.exe 26->29 injected 33 firefox.exe 26->33         started        process13 dnsIp14 43 sparkletime.cloud 92.60.36.190, 64834, 64835, 64836 NETCUP-ASnetcupGmbHDE Germany 29->43 45 www.lianlianzhibo.net 192.186.58.31, 64833, 80 PING-GLOBAL-ASPingGlobalAmsterdamPOPASNNL United States 29->45 47 4 other IPs or domains 29->47 75 Found direct / indirect Syscall (likely to bypass EDR) 29->75 signatures15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c1a4f385aa783b280e78aa0b7e8e5619f319f5dc4ee4d76e6c2bc6c2d079204c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c1a4f385aa783b280e78aa0b7e8e5619f319f5dc4ee4d76e6c2bc6c2d079204c/
Threat name:
Win32.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2025-02-03 03:09:34 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ygsphbnkpa5sqdtyvifx5dswdhzrt5o4j3sno3tmfpdmfudzebga._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unknown_loader_037
Create hunting rule
Similar samples:
766f0c8014c59d7446c4eac18265088069d00d91cf9686fe77ebacc098c7265f
Formbook
8ed16a383adea236fea0ef757127aa5449e223ef29617e0b584286183143234c
Formbook
dd4179b5a4beb239b0ebd4b6f10561ced525e6270ab670d624c592c174c05aaf
Formbook
error
Formbook
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Link:
https://tria.ge/reports/250205-h43spaxnbk/
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
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/b7beb7b0-c268-4cf5-a954-7feaddc6e3b7
Unpacked files
SH256 hash:
ca305175fc7264457331a2fee1170c05378f9201cb2d8ab98255490b541349a9
MD5 hash:
75e735d0e5fc5609ec39b5ab5e5585a5
SHA1 hash:
4bafbf97c219a1417dec0df3b42021a5ff2f702f
Link:
https://www.unpac.me/results/c019e727-3afa-4b76-80d5-ab12967fc488/
SH256 hash:
a16fb1a688cf9a9baaee2aa21ae28ea812438cf52b166b786de451dae60b33e2
MD5 hash:
6e93b8c2326a076b49b226d90292d4d0
SHA1 hash:
e34c7ed0a51ed9fd7dbe62c78329c5df14fe47a5
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/c019e727-3afa-4b76-80d5-ab12967fc488/
SH256 hash:
fc6795eea254ce3fba9b3d460ee522248702163fa7f0c6a393fd501eb484f154
MD5 hash:
38e49fe7bb938d5ecbdd15621c86cdb6
SHA1 hash:
f56ff6479672106b6fdcd7e317f97415e01fb8cd
Link:
https://www.unpac.me/results/c019e727-3afa-4b76-80d5-ab12967fc488/
SH256 hash:
750ea86c4653d26466f07091e66331cef155faf328d90627314f8e24aca0cbf6
MD5 hash:
32ac9c022ab066a847bcef5f3c04d6c3
SHA1 hash:
9de1ccad57aa1aa368173bf544984620f5a90ba8
Link:
https://www.unpac.me/results/c019e727-3afa-4b76-80d5-ab12967fc488/
SH256 hash:
c1a4f385aa783b280e78aa0b7e8e5619f319f5dc4ee4d76e6c2bc6c2d079204c
MD5 hash:
bb42598e11c2ce34a4fb31ff91bd135f
SHA1 hash:
4806a73deab6b861327447cd1847003e1cac5cf1
Link:
https://www.unpac.me/results/c019e727-3afa-4b76-80d5-ab12967fc488/
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/c1a4f385aa783b280e78aa0b7e8e5619f319f5dc4ee4d76e6c2bc6c2d079204c

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: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: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.

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

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