MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 48b1fedfda70deb6e9daab21da06e53950f54c828c40a7390b63baf0a93c956f. 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 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 48b1fedfda70deb6e9daab21da06e53950f54c828c40a7390b63baf0a93c956f
SHA3-384 hash: 76d70a43c2254dd9615cc90b18ae0116e0c4e67d7b783fbd59aa4363f7fa771231327bf3216fce7d92f3b93476d76cae
SHA1 hash: 0ebe3c24e44b842096cb55839bbc2ba9a0db3996
MD5 hash: 1366223ed40a1a49c6509a9d7c308d45
humanhash: bravo-river-echo-fourteen
File name:48b1fedfda70deb6e9daab21da06e53950f54c828c40a7390b63baf0a93c956f
Download: download sample
Signature Formbook
Create hunting rule
File size:665'096 bytes
First seen:2025-01-10 14:06:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'471 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:RnCMxdmEi+hKB6yRP1aZueG0sNhes6EiR9koplkR:3xYEiL51cujNhesfijkou
Threatray 513 similar samples on MalwareBazaar
TLSH T16DE4025C1654D503D86A6BF81AB1F6B52B396EEA7802D3066FDE6DEF79A7B000C041C3
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 adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
168
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
48b1fedfda70deb6e9daab21da06e53950f54c828c40a7390b63baf0a93c956f
Verdict:
Malicious activity
Analysis date:
2025-01-10 15:02:12 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/9922df86-0b5b-4b5e-9b47-426e67ba3ba2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.3073.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6781299c2c8240e189bb80bd
Tags:
virus shell 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
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed packed packer_detected
Link:
https://www.filescan.io/uploads/678129980e6ff2c757032661/reports/b5ca07e7-fb58-40cb-a684-64818edef267/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/48b1fedfda70deb6e9daab21da06e53950f54c828c40a7390b63baf0a93c956f
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/97a3c33a-e469-4df6-81ef-625592840df9
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1587593
Signature
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Loading BitLocker PowerShell Module
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Suricata IDS alerts for network traffic
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1587593 Sample: Oy0ipscCST.exe Startdate: 10/01/2025 Architecture: WINDOWS Score: 100 37 www.yrhbt.shop 2->37 39 www.yhomeshop.online 2->39 41 9 other IPs or domains 2->41 43 Suricata IDS alerts for network traffic 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 9 other signatures 2->49 11 Oy0ipscCST.exe 4 2->11         started        signatures3 process4 file5 35 C:\Users\user\AppData\...\Oy0ipscCST.exe.log, ASCII 11->35 dropped 51 Adds a directory exclusion to Windows Defender 11->51 53 Tries to detect virtualization through RDTSC time measurements 11->53 55 Switches to a custom stack to bypass stack traces 11->55 15 Oy0ipscCST.exe 11->15         started        18 powershell.exe 23 11->18         started        20 Oy0ipscCST.exe 11->20         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 71 2 other signatures 15->71 22 explorer.exe 52 1 15->22 injected 69 Loading BitLocker PowerShell Module 18->69 24 WmiPrvSE.exe 18->24         started        26 conhost.exe 18->26         started        process9 process10 28 msdt.exe 22->28         started        signatures11 57 Modifies the context of a thread in another process (thread injection) 28->57 59 Maps a DLL or memory area into another process 28->59 61 Tries to detect virtualization through RDTSC time measurements 28->61 31 cmd.exe 1 28->31         started        process12 process13 33 conhost.exe 31->33         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/48b1fedfda70deb6e9daab21da06e53950f54c828c40a7390b63baf0a93c956f
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/48b1fedfda70deb6e9daab21da06e53950f54c828c40a7390b63baf0a93c956f/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-10-08 13:23:59 UTC
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jcy75x62odpln2o2vmq5ubxfhfipktecrrakooilmo5pbkj4svxq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unknown_loader_037
Create hunting rule
Similar samples:
462338cc416f17bb48135254e384d49b87dde3f0c40e6c51a70ad7abdecfc231
Formbook
7451a072b5a69adc90d6153c699a926336d27a28b0ef8502d0eae3f790ebe942
Formbook
78b3e10f355de8a780c69cc622dd3bc529365ff5fa141eb291112ee7b2ef2a94
Formbook
a2780a43ac1e90a6945c78cbcbd929863ab89c72ff1f86380f48303d051bc7d4
Formbook
c76f4cc201813bc9e4a8d5ae27ce0c59b799f02dd48b3e09af20118a8fe18c50
Formbook
+ 503 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:c24t discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/250110-re2c1awlhy/
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
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/a822c645-bcae-49f5-972a-0f86f2b85286
Unpacked files
SH256 hash:
40babe4601da80b05397c6f203e270862747ea19ac9970dc59b3cf0df1d1fb87
MD5 hash:
a361843a96b935377a3e65f049fc50f3
SHA1 hash:
cf3cbeb8e1f17859cb0c08c655a0b23f89bc0cdd
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/272cadb3-6f30-495b-98bc-cf26dbdeade6/
Parent samples :
3c321f4c7feb1233711409ad1fc9371732c24a302d3e5b9cd5e238ab1a638288
9244e7f4c9184e0087ea02ee9ae60f70fce3dc9e049956e1a30bbff947bbfb35
a0ec8ea072fa0a81fb5e660f8aa278d9c06bb361080845911208d6579d15605a
5bc4574dc91259c37e24e9fafd52c4798d2ac0b04bdce4ea1959b1c4a1bb1be1
b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0
223786813c2b26e84549506a10b63d6a7c619f99551cf4abaf636d1588f8a001
fd7a998d2f4db27ec6b0ec32459571e124128cf57ed9b8236374dc68519c8fa8
b481fd78d0f715aaf7d7446c33e2bdf500e52e1c0d58ce5f81efae25ff9a8fd2
5775d4b06096a813ae445ace79308cd93882ea2e303362ecd53297ba8c4a38c4
6dc1bba66cba9a4ee7a5156375e1935bd30c6b1022bea4082fb3714ce5c73e07
5789d779f7aff954b10c95ab92c85c787c25f4b348f43db969b70c5329e74b93
c89c37f0b5dc89251da6c37aa8e1071c43d52c80fd2326f1e6de8dcd5eaf0dfc
3e26ebdfbd46dadcbf46c199970362689fa6ca0e0abb65ec703ca21d08b7269f
5a0f5258d3f90db784b6d43565d0fd74579b162c683b72d41cc070bd8a7b1e41
fef0d0e16559f3c10c8a414b00433d165f132b4444ddc2a7033ab7a2e1bb7604
ffaa78a8a97885716e7dbe2a4a7ed9e1593ea5690f02f79f5d63c9b4964559da
5282b57b495bb6cca55225f7de91b203403b8ce35e41e62703e803f4aa134eb8
4ceecda6e1ddcf38828df1e7ea882fdfae4359ed0c6a55c86cf875dd3143b549
4b0562351e83e3d40dfa638ce4811a2699562c3bb4ea1d3afb4f76d00ad0b33a
0460b13245e1675310035b772097a9c7f459f00a90ed1b368761ed6553abc009
31a702cd5ff00baefbeb5f301ca3015587a099b0046939cc3d1e8cd553eb3147
5d021ca8e798f9713c4778b806fa00c207dbe34f4efec22ec5d1b65dd59c68a7
1e3104a64ac3e19163d22210b2f4df66dbccfe1731177ba1022ff9044b421c84
48b1fedfda70deb6e9daab21da06e53950f54c828c40a7390b63baf0a93c956f
SH256 hash:
7ca4e8cdabe29f7d950e05405f2903639039a726bbd994376ee1538ef6243bce
MD5 hash:
01889f2a69845f5df36cced77953423e
SHA1 hash:
b762719052b3682dea02b26cb3a5603acd1d0bde
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/272cadb3-6f30-495b-98bc-cf26dbdeade6/
SH256 hash:
682c261fcd08c676ef231f46eac1c054c8df17522846b9e4adbafb62e8482dab
MD5 hash:
5a6cead6de3340dd9e0b16d599e5d1f5
SHA1 hash:
00e25f93284ff0d2493c6df3a596891d0848399e
Link:
https://www.unpac.me/results/272cadb3-6f30-495b-98bc-cf26dbdeade6/
SH256 hash:
48b1fedfda70deb6e9daab21da06e53950f54c828c40a7390b63baf0a93c956f
MD5 hash:
1366223ed40a1a49c6509a9d7c308d45
SHA1 hash:
0ebe3c24e44b842096cb55839bbc2ba9a0db3996
Link:
https://www.unpac.me/results/272cadb3-6f30-495b-98bc-cf26dbdeade6/
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/48b1fedfda70deb6e9daab21da06e53950f54c828c40a7390b63baf0a93c956f

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:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
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:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
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)
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/formbook-adopts-cab-less-approach
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

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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