MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ce513a7b52e5336f4b855d52d16302f67e8445fbc041bde8fffed7fc01f74f3. 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: 15


Intelligence 15 IOCs YARA 15 File information Comments
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SHA256 hash: 4ce513a7b52e5336f4b855d52d16302f67e8445fbc041bde8fffed7fc01f74f3
SHA3-384 hash: 2c83d4902c46c3686451fab4b72c4bb5b7c83199e4903b605d1c89ad543f9c4a9d99f6516b6b1c2634ea85f7f46db64b
SHA1 hash: 4d7f8414d5e9b41a03fe808c6488ef5d05332cb5
MD5 hash: c68d6eb20395a5d129019a47379578c7
humanhash: twenty-uranus-utah-robert
File name:Bank Slip pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'072'648 bytes
First seen:2025-02-05 05:18:53 UTC
Last seen:2025-02-05 06:21:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:/fHbISe1xTujwsC2BbcspCEYc0jl5pm1Bubt7LBKyARf:bkbTcxh9QE+jpCBw7FKxRf
TLSH T1D535017DF6FB5F65D7984972C9E49C2007B27089F831F348658100EA8E0AFE92956F47
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
File icon (PE):PE icon
dhash icon 8018b49492b41880 (13 x Formbook, 4 x AgentTesla, 4 x MassLogger)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
496
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Bank Slip pdf.exe
Verdict:
Malicious activity
Analysis date:
2025-02-05 05:19:40 UTC
Tags:
netreactor
Link:
https://app.any.run/tasks/a5dc46cb-289a-421a-b279-02a431d735a2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.23940.6887.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67a2f5d651193558eb196b23
Tags:
n/a
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
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
invalid-signature net_reactor obfuscated obfuscated obfuscated packed packed packer_detected signed vbnet
Link:
https://www.filescan.io/uploads/67a2f4d2ba24fa6b89346d3c/reports/66bb85b4-5456-4cd1-906e-f08151df7fbb/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4ce513a7b52e5336f4b855d52d16302f67e8445fbc041bde8fffed7fc01f74f3
Result
Verdict:
SUSPICIOUS
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/006be28a-bd7f-4325-99e3-f0d2060f7746
Result
Threat name:
FormBook, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1607116
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
Allocates memory in foreign processes
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
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
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)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
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)
Uses nslookup.exe to query domains
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1607116 Sample: Bank Slip pdf.exe Startdate: 05/02/2025 Architecture: WINDOWS Score: 100 59 www.62bet.xyz 2->59 61 www.sagaswap.xyz 2->61 63 9 other IPs or domains 2->63 75 Suricata IDS alerts for network traffic 2->75 77 Antivirus detection for URL or domain 2->77 79 Sigma detected: Scheduled temp file as task from temp location 2->79 83 12 other signatures 2->83 10 Bank Slip pdf.exe 7 2->10         started        14 DFieKVljKLjh.exe 5 2->14         started        signatures3 81 Performs DNS queries to domains with low reputation 61->81 process4 file5 51 C:\Users\user\AppData\...\DFieKVljKLjh.exe, PE32 10->51 dropped 53 C:\Users\...\DFieKVljKLjh.exe:Zone.Identifier, ASCII 10->53 dropped 55 C:\Users\user\AppData\Local\...\tmp1A13.tmp, XML 10->55 dropped 57 C:\Users\user\...\Bank Slip pdf.exe.log, ASCII 10->57 dropped 93 Writes to foreign memory regions 10->93 95 Allocates memory in foreign processes 10->95 97 Adds a directory exclusion to Windows Defender 10->97 16 RegSvcs.exe 10->16         started        19 powershell.exe 23 10->19         started        21 powershell.exe 23 10->21         started        23 schtasks.exe 1 10->23         started        99 Multi AV Scanner detection for dropped file 14->99 101 Machine Learning detection for dropped file 14->101 103 Injects a PE file into a foreign processes 14->103 25 schtasks.exe 1 14->25         started        27 RegSvcs.exe 14->27         started        signatures6 process7 signatures8 71 Maps a DLL or memory area into another process 16->71 29 FWw3YhKoYL.exe 16->29 injected 73 Loading BitLocker PowerShell Module 19->73 32 WmiPrvSE.exe 19->32         started        34 conhost.exe 19->34         started        36 conhost.exe 21->36         started        38 conhost.exe 23->38         started        40 conhost.exe 25->40         started        process9 signatures10 105 Uses nslookup.exe to query domains 29->105 107 Found direct / indirect Syscall (likely to bypass EDR) 29->107 42 nslookup.exe 29->42         started        process11 signatures12 85 Tries to steal Mail credentials (via file / registry access) 42->85 87 Tries to harvest and steal browser information (history, passwords, etc) 42->87 89 Modifies the context of a thread in another process (thread injection) 42->89 91 3 other signatures 42->91 45 FWw3YhKoYL.exe 42->45 injected 49 firefox.exe 42->49         started        process13 dnsIp14 65 www.62bet.xyz 52.20.84.62, 49955, 49956, 49957 AMAZON-AESUS United States 45->65 67 www.primeconnect.live 67.223.117.189, 49841, 49857, 49875 VIMRO-AS15189US United States 45->67 69 7 other IPs or domains 45->69 109 Found direct / indirect Syscall (likely to bypass EDR) 45->109 signatures15
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4ce513a7b52e5336f4b855d52d16302f67e8445fbc041bde8fffed7fc01f74f3
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4ce513a7b52e5336f4b855d52d16302f67e8445fbc041bde8fffed7fc01f74f3/
Threat name:
Win32.Exploit.PureLogStealer
Create hunting rule
Status:
Malicious
First seen:
2025-02-05 05:19:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jtsrhj5vfzjtn5fykxks2frqf5t6qrc7xqcbxxup77wx7qa7otzq._file
Verdict:
malicious
Label(s):
unknown_loader_037
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Link:
https://tria.ge/reports/250205-fzwsga1pgx/
Behaviour
Scheduled Task/Job: Scheduled Task
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/09970740-0367-4eb7-add5-e3460d8de7bc
Unpacked files
SH256 hash:
4ce513a7b52e5336f4b855d52d16302f67e8445fbc041bde8fffed7fc01f74f3
MD5 hash:
c68d6eb20395a5d129019a47379578c7
SHA1 hash:
4d7f8414d5e9b41a03fe808c6488ef5d05332cb5
Link:
https://www.unpac.me/results/bb06c882-2b60-4ed8-98c3-036ba01e7cb5/
SH256 hash:
bff262a81941b07d48fbaa88097aef0811eba2b526a277def168f3b17553c3d2
MD5 hash:
078529b12f383ee64b13ecdf97f5769e
SHA1 hash:
0bf490217623599366fd8bb6ebb53b2afe083ef1
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/bb06c882-2b60-4ed8-98c3-036ba01e7cb5/
SH256 hash:
46179564cc03d5690df38e6be0966fe4be64cd260ab9dab4d123fe86b2797bdc
MD5 hash:
6ae96021609277c812c633be446a6400
SHA1 hash:
4642b70dc81ceb2d2e4eda9e46214b88908f36f3
Link:
https://www.unpac.me/results/bb06c882-2b60-4ed8-98c3-036ba01e7cb5/
SH256 hash:
7802c2e097d973e28c138ee629df6807d09cb0dce4ceafb51686439d87da6588
MD5 hash:
9adfffedc32a8bd796125a5a22f5d83b
SHA1 hash:
613c50845b15fa13c6d1583cd8e025002204b241
Link:
https://www.unpac.me/results/bb06c882-2b60-4ed8-98c3-036ba01e7cb5/
SH256 hash:
e712bcd56fe64742c0f674f3acff83490f8103c260ea3389f56151b5066b7cd3
MD5 hash:
7bad4197d1ae020c9049a782eb9a71d2
SHA1 hash:
e1253047ea92beb7d161b106765ad8b03bc86b1e
Link:
https://www.unpac.me/results/bb06c882-2b60-4ed8-98c3-036ba01e7cb5/
SH256 hash:
6b732c2c1b2e52c431f9e24d8ab4e9a53777d760a4538109cdc72a6b4144a84f
MD5 hash:
019bb03359046a34cd29dd2ce9737057
SHA1 hash:
a61ec87d300e722a372a6e6130a4462d1daf2fa1
Link:
https://www.unpac.me/results/bb06c882-2b60-4ed8-98c3-036ba01e7cb5/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4ce513a7b52e/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/4ce513a7b52e5336f4b855d52d16302f67e8445fbc041bde8fffed7fc01f74f3

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:DotNet_Reactor
Create hunting rule
Author:@bartblaze
Description:Identifies .NET Reactor, which offers .NET code protection such as obfuscation, encryption and so on.
Rule name:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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:PureCrypter
Create hunting rule
Author:@bartblaze
Description:Identifies PureCrypter, .NET loader and obfuscator.
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.purecrypter
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
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.

Malspam

Formbook

Executable exe 4ce513a7b52e5336f4b855d52d16302f67e8445fbc041bde8fffed7fc01f74f3

(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 (GUARD_CF)high

Comments