MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41415c1dab37487faf427095855fb66cafa150ae15b9c515234e1e0b5f733aa8. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 41415c1dab37487faf427095855fb66cafa150ae15b9c515234e1e0b5f733aa8
SHA3-384 hash: 455452d48366548ae64abfe6f7ae2c1bf65bca4b53f9715a109392f43bba6610f0be770693f134535d62d60a64575667
SHA1 hash: bed0ca4d26091382ed51aedaa31b7bf346ef637e
MD5 hash: c7c888b7a107ed4a5aadb7a37a9e82d3
humanhash: vegan-arizona-mirror-single
File name:Cari_ Ekstre 31125.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:619'008 bytes
First seen:2025-03-12 17:32:07 UTC
Last seen:2025-03-12 19:10:35 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:AUuc154seVS9vcJvUSb/44fC6hw3gLe9BpPh0QE27O/glMnGXWy/p3MV7w:juTc9a944qdHpPDE27O/MMnGXWZq
Threatray 4'702 similar samples on MalwareBazaar
TLSH T1F1D40294AAADEB52EDB51BF00972D23507B4AE6DF430E2468DD9ECEF74317042429B13
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 abuse_ch
Tags:exe FormBook geo TUR

Intelligence

File Origin
# of uploads :
2
# of downloads :
424
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
12032025_0849_11032025_Cari_Ekstre31125.bz
Verdict:
Malicious activity
Analysis date:
2025-03-12 09:04:31 UTC
Tags:
arch-exec formbook stealer xloader
Link:
https://app.any.run/tasks/deeb5a8d-b731-41c5-8095-26edc5ddbfb2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67d14e1edff6bd92190871b6
Tags:
shell virus msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/67d1c5223c5f644bd94fb60a/reports/e99807fc-9c93-4ee6-ab20-0b2dfc50c5f6/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/41415c1dab37487faf427095855fb66cafa150ae15b9c515234e1e0b5f733aa8
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/328906e0-f177-45fe-b87f-a5c47bf07cba
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1636407
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: CMSTP Execution Process Creation
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1636407 Sample: Cari_ Ekstre 31125.exe Startdate: 12/03/2025 Architecture: WINDOWS Score: 100 35 www.usshelter.net 2->35 37 www.leartec.health 2->37 39 3 other IPs or domains 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 11 other signatures 2->47 11 Cari_ Ekstre 31125.exe 4 2->11         started        signatures3 process4 file5 33 C:\Users\user\...\Cari_ Ekstre 31125.exe.log, ASCII 11->33 dropped 57 Adds a directory exclusion to Windows Defender 11->57 15 Cari_ Ekstre 31125.exe 11->15         started        18 powershell.exe 23 11->18         started        20 Cari_ Ekstre 31125.exe 11->20         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 67 2 other signatures 15->67 22 explorer.exe 39 1 15->22 injected 65 Loading BitLocker PowerShell Module 18->65 24 conhost.exe 18->24         started        process9 process10 26 cmstp.exe 22->26         started        signatures11 49 Modifies the context of a thread in another process (thread injection) 26->49 51 Maps a DLL or memory area into another process 26->51 53 Tries to detect virtualization through RDTSC time measurements 26->53 55 Switches to a custom stack to bypass stack traces 26->55 29 cmd.exe 1 26->29         started        process12 process13 31 conhost.exe 29->31         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/41415c1dab37487faf427095855fb66cafa150ae15b9c515234e1e0b5f733aa8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/41415c1dab37487faf427095855fb66cafa150ae15b9c515234e1e0b5f733aa8/
Threat name:
Win32.Spyware.Swotter
Create hunting rule
Status:
Malicious
First seen:
2025-03-11 12:36:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
18 of 24 (75.00%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ifavyhnlg5eh7l2cockykx5wnsx2cufocw44kfjdjypawx3thkua._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
formbook
Create hunting rule
Similar samples:
06c800d5feba73344681fe9f7fa2cf6606d18fc37cc0a84cbcce2e06fa6dd9f9
Formbook
41415c1dab37487faf427095855fb66cafa150ae15b9c515234e1e0b5f733aa8
Formbook
5fe6c1b9d059a989012a070bb99d17899afaeb8f0fbd9141aeef5edce413b7c2
Formbook
63e3b4304b855b3219c28b8d5306241564ac5f1752a01b5b793ee7733b4c69a7
Formbook
6436df943cf575aaa1f311c20b10650f6ebba35add1a45c1b736fe713949ac21
Formbook
8d83a9a3bbd6e63e37b6d66c4febdbcf17a48fe77fabdd52c5bfa01a661a33da
Formbook
b362ced287b5f00b3b2ab2c3a7bbc85b57e13271d76a6c65423a831fde92876c
Formbook
b6ae18a5eade4cdd5181289b7786f7c579f10161aba8753ac3e0042d1afff2d8
Formbook
error
Formbook
+ 4'692 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:bs03 discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/250312-v4dj1sxwhy/
Behaviour
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/c6362723-97f2-4803-b617-7331a45a1859
Unpacked files
SH256 hash:
41415c1dab37487faf427095855fb66cafa150ae15b9c515234e1e0b5f733aa8
MD5 hash:
c7c888b7a107ed4a5aadb7a37a9e82d3
SHA1 hash:
bed0ca4d26091382ed51aedaa31b7bf346ef637e
Link:
https://www.unpac.me/results/b36f4210-e42e-40eb-94d0-24aa4eeb67ec/
SH256 hash:
57690ea45843d19fd41140c714ff79678ab934f8b9761cc00772568a115c7b4e
MD5 hash:
cc6795b8db28abf93c884355e4872917
SHA1 hash:
00aaf1c3e0c3f3b024bd594393747a7fc973c6c9
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/b36f4210-e42e-40eb-94d0-24aa4eeb67ec/
SH256 hash:
de8c9e136cdee47f85a41376993c3384591a5444fe86b558d938f5126cd07c7e
MD5 hash:
b94f77c5ccefb69ea3f0e8473c253ee4
SHA1 hash:
1cec543b1679dfa17f70553dcc17d84b881b31ea
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/b36f4210-e42e-40eb-94d0-24aa4eeb67ec/
Parent samples :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 hash:
532b11c8087cc519a9ad47e7d9f1129467911478a1ef182b4187584aa011d29d
MD5 hash:
ccee1396e554934bc68432550a9d5470
SHA1 hash:
89301cec622009659e5913b0406de46cf0e873de
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/b36f4210-e42e-40eb-94d0-24aa4eeb67ec/
Parent samples :
41415c1dab37487faf427095855fb66cafa150ae15b9c515234e1e0b5f733aa8
4023f16ab570c96bbfc7d6c9685d137382c82029c15df71696acdc20023dd31b
8fff9a173774de4ef78139d49e3f62b83fdf1b2a542c257567e76c7b82ef5e5f
df76258f5a92817111c47c370f40806f0e913fe8a8f05dc84a8a3f5e5c8464eb
16fd6d298d5601766ee8fd0e0164898436f9cad9ac79927a14af387166aac100
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/41415c1dab37/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/41415c1dab37487faf427095855fb66cafa150ae15b9c515234e1e0b5f733aa8

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
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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