MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73. 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: 18


Intelligence 18 IOCs YARA 6 File information Comments
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SHA256 hash: c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73
SHA3-384 hash: 7370e583e601b3b393b135baad851f77be2cd04e4f71f960e7d9176c790e4e637f226b516b1f36ab391660517d4b2074
SHA1 hash: 4fb8a0435be969803b11d4775d9026f692c64445
MD5 hash: 303c96d28de2023a3358f8a1c4dca692
humanhash: yellow-utah-uniform-william
File name:EPDA - SOA_Payment Reference SKMBT TR-3420241202_799002.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:732'160 bytes
First seen:2024-12-14 12:37:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:ZC25usx+XtRIO/3YtvYwFA8wL6Ab5buKjGhKyPV0VlzYqrh+GkVc:LxyIFvULLpNyKj6KKVqhYqla
TLSH T1C2F4F01632699817D6B69BF40E71F1B817B93EADB910E2C68EC56DCBB8F5F100A40353
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 00844b16e6643800 (10 x Formbook, 3 x AgentTesla, 1 x VIPKeylogger)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
414
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
EPDA - SOA_Payment Reference SKMBT TR-3420241202_799002.exe
Verdict:
Malicious activity
Analysis date:
2024-12-14 12:37:19 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/b2efbf16-b039-4684-ba04-0567264a7465

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Malwarex-10038365-0
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=675d7d82653a8698dfc8163a
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching cmd.exe command interpreter
Setting browser functions hooks
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:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook infostealer masquerade packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/675d7bf008f166f50c9db35f/reports/f04a72fe-5043-46cf-bab5-35e4cd264ca2/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a620402d-49a6-448e-9c0f-6208bc55631a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1575100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
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
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
Queues an APC in another process (thread injection)
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
Tries to detect virtualization through RDTSC time measurements
Tries to resolve many domain names, but no domain seems valid
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1575100 Sample: EPDA - SOA_Payment Referenc... Startdate: 14/12/2024 Architecture: WINDOWS Score: 100 57 www.0k21l6z.xyz 2->57 59 www.rabideen.online 2->59 61 9 other IPs or domains 2->61 75 Found malware configuration 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 Sigma detected: Scheduled temp file as task from temp location 2->79 83 14 other signatures 2->83 11 EPDA - SOA_Payment Reference SKMBT TR-3420241202_799002.exe 7 2->11         started        15 ODwExtAZdSpo.exe 5 2->15         started        signatures3 81 Performs DNS queries to domains with low reputation 57->81 process4 file5 49 C:\Users\user\AppData\...\ODwExtAZdSpo.exe, PE32 11->49 dropped 51 C:\Users\...\ODwExtAZdSpo.exe:Zone.Identifier, ASCII 11->51 dropped 53 C:\Users\user\AppData\Local\...\tmp448D.tmp, XML 11->53 dropped 55 EPDA - SOA_Payment...1202_799002.exe.log, ASCII 11->55 dropped 93 Adds a directory exclusion to Windows Defender 11->93 95 Injects a PE file into a foreign processes 11->95 17 EPDA - SOA_Payment Reference SKMBT TR-3420241202_799002.exe 11->17         started        20 powershell.exe 22 11->20         started        22 schtasks.exe 1 11->22         started        24 EPDA - SOA_Payment Reference SKMBT TR-3420241202_799002.exe 11->24         started        97 Multi AV Scanner detection for dropped file 15->97 99 Machine Learning detection for dropped file 15->99 101 Tries to detect virtualization through RDTSC time measurements 15->101 103 Switches to a custom stack to bypass stack traces 15->103 26 ODwExtAZdSpo.exe 15->26         started        28 schtasks.exe 1 15->28         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 17->63 65 Maps a DLL or memory area into another process 17->65 67 Sample uses process hollowing technique 17->67 69 Queues an APC in another process (thread injection) 17->69 30 explorer.exe 53 1 17->30 injected 71 Loading BitLocker PowerShell Module 20->71 32 WmiPrvSE.exe 20->32         started        34 conhost.exe 20->34         started        36 conhost.exe 22->36         started        73 Found direct / indirect Syscall (likely to bypass EDR) 26->73 38 conhost.exe 28->38         started        process9 process10 40 cmmon32.exe 30->40         started        43 cmstp.exe 30->43         started        signatures11 85 Modifies the context of a thread in another process (thread injection) 40->85 87 Maps a DLL or memory area into another process 40->87 89 Tries to detect virtualization through RDTSC time measurements 40->89 91 Switches to a custom stack to bypass stack traces 40->91 45 cmd.exe 1 40->45         started        process12 process13 47 conhost.exe 45->47         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73/
Threat name:
Win32.Backdoor.FormBook
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Status:
Malicious
First seen:
2024-12-02 04:36:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ygcy5iukrafj26eus6mgwva4fh3zzmww32fouvupbgzqtj4btrzq._file
Verdict:
malicious
Label(s):
formbook
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unknown_loader_037
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Similar samples:
error
Formbook
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:bs84 discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/241214-ptf99stncr/
Behaviour
Gathers network information
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
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
Deletes itself
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
Win.Packed.Malwarex-10038365-0
YARA:
n/a
Link:
https://app.threat.zone/submission/5c080fda-d4c5-4756-a3d0-d21c0f17c495
Unpacked files
SH256 hash:
de67581d4377157bf3c5c7dc95fa21981764c17658529358b765260fff7a126f
MD5 hash:
32fa5cb4a375adfae69cf63df40d773f
SHA1 hash:
484281a3eb97941ebd921600e5706e13cee465db
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_w0
Create hunting rule
Formbook
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Link:
https://www.unpac.me/results/73c5f81a-d10f-4d0b-9e7a-6817f54eef97/
Parent samples :
9d29cb978c64e5ad17d72e5cabac60c2e4871924c41a7dc0ccaadba7a428703a
c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73
b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd
dd82f88cdd4a62e9e9b5a081cbd3f98b542614ee6b0e33c2385817af92c704a1
fc4b96c08701cd086a981e6a3cf8e76f6da3377d08f2f081dc46c4228096b7ed
SH256 hash:
3bff1c26a811fd1bff262db4b1a622a028e5e5489dbcc917015713b0c8b2a4e6
MD5 hash:
573f4511661a9955a5362f38da2d2823
SHA1 hash:
4fb383d75a4eac47f38ad788a69c871d37b1d479
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/73c5f81a-d10f-4d0b-9e7a-6817f54eef97/
SH256 hash:
acf09c80699691d3a6a8d52577d06a7054c1bda1953a55527251e92e15ba037f
MD5 hash:
69473b5123488cff4aae599aa14eb3a4
SHA1 hash:
1d3562fd2fb55582cb97441b9f01065dd80373fc
Link:
https://www.unpac.me/results/73c5f81a-d10f-4d0b-9e7a-6817f54eef97/
SH256 hash:
c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73
MD5 hash:
303c96d28de2023a3358f8a1c4dca692
SHA1 hash:
4fb8a0435be969803b11d4775d9026f692c64445
Link:
https://www.unpac.me/results/73c5f81a-d10f-4d0b-9e7a-6817f54eef97/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c1858ea28a88/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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: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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