MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 28a19b1d262d7440f15fb83e5d5b1b5e4a5d7a13dfea10533f9a041a81b0abd4. 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 4 File information Comments
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SHA256 hash: 28a19b1d262d7440f15fb83e5d5b1b5e4a5d7a13dfea10533f9a041a81b0abd4
SHA3-384 hash: f9e7ff0008839e84337a87e640de1c378544ba3c928fa4c9c66171c552a97b3af8d709d3817abc8a7d2c6e56b0ed8ad0
SHA1 hash: cd53f948cf153a74cf02aae1c94b44fb203cdd4e
MD5 hash: 8c5f2cd8c8d94d0443511ccf03836da4
humanhash: december-johnny-arizona-william
File name:Quotation.scr
Download: download sample
Signature Formbook
Create hunting rule
File size:665'088 bytes
First seen:2025-06-16 11:45:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:vzWISWQaZajBMf4AHd0pZYRowcsELes5LVQhrmn/bq0W:KIo0C24AHddowu
TLSH T1E1E401082A56E916E8C25B399DB0D37926B94F8CE501C307DBFDBCEBBD376953404292
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
dhash icon f08f898c8e8a8fb0 (37 x SnakeKeylogger, 19 x AgentTesla, 17 x AveMariaRAT)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
418
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Quotation.scr
Verdict:
Malicious activity
Analysis date:
2025-06-16 11:57:22 UTC
Tags:
formbook stealer netreactor xloader
Link:
https://app.any.run/tasks/b3d514e0-2134-4065-be50-1f93962d4340

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/9605/
Detection(s):
Win.Dropper.Formbook-9994358-0
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6850042a8bd5d68a12e8cf6a
Tags:
virus spawn 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:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/28a19b1d262d7440f15fb83e5d5b1b5e4a5d7a13dfea10533f9a041a81b0abd4
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3ecf3832-7d8f-4a68-8d79-a1591fd33b05
Result
Threat name:
FormBook, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1715401
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
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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
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)
Reads the DNS cache
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1715401 Sample: Quotation.scr.exe Startdate: 16/06/2025 Architecture: WINDOWS Score: 100 36 www.zmcx7gpt.top 2->36 38 www.reluk.info 2->38 40 3 other IPs or domains 2->40 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->46 48 11 other signatures 2->48 11 Quotation.scr.exe 4 2->11         started        signatures3 process4 file5 34 C:\Users\user\...\Quotation.scr.exe.log, ASCII 11->34 dropped 60 Adds a directory exclusion to Windows Defender 11->60 62 Tries to detect virtualization through RDTSC time measurements 11->62 64 Injects a PE file into a foreign processes 11->64 66 Switches to a custom stack to bypass stack traces 11->66 15 Quotation.scr.exe 11->15         started        18 powershell.exe 23 11->18         started        signatures6 process7 signatures8 68 Modifies the context of a thread in another process (thread injection) 15->68 70 Maps a DLL or memory area into another process 15->70 72 Sample uses process hollowing technique 15->72 76 2 other signatures 15->76 20 explorer.exe 28 1 15->20 injected 74 Loading BitLocker PowerShell Module 18->74 23 WmiPrvSE.exe 18->23         started        25 conhost.exe 18->25         started        process9 signatures10 50 Uses ipconfig to lookup or modify the Windows network settings 20->50 27 ipconfig.exe 20->27         started        process11 signatures12 52 Modifies the context of a thread in another process (thread injection) 27->52 54 Reads the DNS cache 27->54 56 Maps a DLL or memory area into another process 27->56 58 2 other signatures 27->58 30 cmd.exe 1 27->30         started        process13 process14 32 conhost.exe 30->32         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/28a19b1d262d7440f15fb83e5d5b1b5e4a5d7a13dfea10533f9a041a81b0abd4
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/28a19b1d262d7440f15fb83e5d5b1b5e4a5d7a13dfea10533f9a041a81b0abd4/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2025-06-11 07:37:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fcqzwhjgfv2eb4k7xa7f2wy3lzff26qt37vbauz7ticbvanqvpka._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unc_loader_037
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:o09a discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/250616-nxtt4aywex/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
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
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
Win.Dropper.Formbook-9994358-0
YARA:
n/a
Link:
https://app.threat.zone/submission/25f35453-9713-4ee6-8179-bca732c4473f
Unpacked files
SH256 hash:
28a19b1d262d7440f15fb83e5d5b1b5e4a5d7a13dfea10533f9a041a81b0abd4
MD5 hash:
8c5f2cd8c8d94d0443511ccf03836da4
SHA1 hash:
cd53f948cf153a74cf02aae1c94b44fb203cdd4e
Link:
https://www.unpac.me/results/0bd8322e-20bc-422c-b239-ebc5fd4211de/
SH256 hash:
c492565fa35eb538f34fd546ef100af328c0283f88fc8d6e11e4a1d10392dffb
MD5 hash:
6dbf429cf8001a074f23eb2792967878
SHA1 hash:
608f8fcab89250e90deccb1dea896f6a42fa194b
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/0bd8322e-20bc-422c-b239-ebc5fd4211de/
Parent samples :
d168b4b242f22172a5bdf03c8e368d1fdd8e8a9c260d60667e4fea6965bca9d8
7a560acc97e0be33258afce759c4c215a91103e7b7447e487d540eca65959f4e
2382293ae93ccb52b8f2085e938dd5748cbcc615bbb93b692e84ca10614b97eb
c3e60b1c3a6a89355139b5213bd09d61dce0505d36e792b972e24b99fbb89850
28a19b1d262d7440f15fb83e5d5b1b5e4a5d7a13dfea10533f9a041a81b0abd4
SH256 hash:
b34e3d1ffdeb9aa32cd5b77f4b5be96306ed32901d9d729d136d7fb4c70d2839
MD5 hash:
7a66e8c8affb24d1592b6ca0ef525972
SHA1 hash:
7be2575f34af3d93394df491ef0cbaf768661c70
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/0bd8322e-20bc-422c-b239-ebc5fd4211de/
SH256 hash:
52347bcdd7cb7ad6b2bcce34fbd0278340297009507f3059257a453aeb2ba8cd
MD5 hash:
ceff5d42573a549e597450d26498fa87
SHA1 hash:
5e9df1293b22e5afb89e32f8e60e4f5f540ae4a5
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/0bd8322e-20bc-422c-b239-ebc5fd4211de/
Parent samples :
28a19b1d262d7440f15fb83e5d5b1b5e4a5d7a13dfea10533f9a041a81b0abd4
76c83209bd8b50457ba60e433a6a49be1f03471d506906ee18b8b211fd0779dd
Malware family:
zgRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/28a19b1d262d/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/28a19b1d262d7440f15fb83e5d5b1b5e4a5d7a13dfea10533f9a041a81b0abd4

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: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 28a19b1d262d7440f15fb83e5d5b1b5e4a5d7a13dfea10533f9a041a81b0abd4

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/9605/

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