MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2817a9a6fc061c9f8e6e7c341b778b403ceaeb439cb8e40760c908ada5c323cd. 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: 16


Intelligence 16 IOCs YARA 9 File information Comments
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SHA256 hash: 2817a9a6fc061c9f8e6e7c341b778b403ceaeb439cb8e40760c908ada5c323cd
SHA3-384 hash: bb06b438c7e8baab0d26f62ba8853e0d17cf8b244c58690bb78e4d54028f618e3c88e147a4eff522c94cda4eb5bae3ed
SHA1 hash: 9deb9da31e00f63d2a607d717c26a3d29e1ded5f
MD5 hash: 1d278e311f71d28a7b468c9e8c42d3e8
humanhash: floor-avocado-river-mars
File name:2817a9a6fc061c9f8e6e7c341b778b403ceaeb439cb8e40760c908ada5c323cd
Download: download sample
Signature Formbook
Create hunting rule
File size:782'344 bytes
First seen:2024-12-05 15:47:39 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:vcmEZ3bkiEWVZ25bNMHWQLElf7MIboj2buIVToTX6PUVgIGi7TykR:vEtBEWVE5GHWQLEl+2t0TqUVgK
TLSH T10AF4BF1476548F63CA74CBF43871F07113FC6EAEA42AE2555DC26EEB79A1F048960E83
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 :
284
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2817a9a6fc061c9f8e6e7c341b778b403ceaeb439cb8e40760c908ada5c323cd.exe
Verdict:
Malicious activity
Analysis date:
2024-12-05 16:01:50 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b5d2a460-1401-48df-ab41-48d724f83108

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Dropper.Nanocore-10025638-0
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6751cb3dbc8c6beb3075ffd5
Tags:
virus shell gates
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
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
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
nanocore packed packed packer_detected
Link:
https://www.filescan.io/uploads/6751cb3f852affe9665191d4/reports/87561762-c06e-4f57-9e01-e2787a89f839/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/2817a9a6fc061c9f8e6e7c341b778b403ceaeb439cb8e40760c908ada5c323cd
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c331de2e-a0b0-4fdb-bcc8-680599a5d881
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1569256
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
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
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
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
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: 1569256 Sample: L4rN4tX0aH.exe Startdate: 05/12/2024 Architecture: WINDOWS Score: 100 34 www.phimxhot.xyz 2->34 36 www.laske.xyz 2->36 38 14 other IPs or domains 2->38 44 Suricata IDS alerts for network traffic 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 52 10 other signatures 2->52 11 L4rN4tX0aH.exe 3 2->11         started        signatures3 50 Performs DNS queries to domains with low reputation 36->50 process4 signatures5 56 Adds a directory exclusion to Windows Defender 11->56 58 Tries to detect virtualization through RDTSC time measurements 11->58 60 Switches to a custom stack to bypass stack traces 11->60 14 L4rN4tX0aH.exe 11->14         started        17 powershell.exe 23 11->17         started        process6 signatures7 70 Modifies the context of a thread in another process (thread injection) 14->70 72 Maps a DLL or memory area into another process 14->72 74 Sample uses process hollowing technique 14->74 78 2 other signatures 14->78 19 explorer.exe 105 1 14->19 injected 76 Loading BitLocker PowerShell Module 17->76 23 WmiPrvSE.exe 17->23         started        25 conhost.exe 17->25         started        process8 dnsIp9 40 cdn112.6p5m7.com 137.220.183.235, 49728, 80 BCPL-SGBGPNETGlobalASNSG Singapore 19->40 42 hdr-nlb7-aebd5d615260636b.elb.us-east-1.amazonaws.com 34.205.242.146, 49725, 80 AMAZON-AESUS United States 19->42 54 System process connects to network (likely due to code injection or exploit) 19->54 27 mstsc.exe 19->27         started        signatures10 process11 signatures12 62 Modifies the context of a thread in another process (thread injection) 27->62 64 Maps a DLL or memory area into another process 27->64 66 Tries to detect virtualization through RDTSC time measurements 27->66 68 Switches to a custom stack to bypass stack traces 27->68 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/2817a9a6fc061c9f8e6e7c341b778b403ceaeb439cb8e40760c908ada5c323cd
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2817a9a6fc061c9f8e6e7c341b778b403ceaeb439cb8e40760c908ada5c323cd/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-10-09 07:27:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
29
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fal2tjx4ayoj7dtopq2bw54lia6ov22dts4oib3azeek3jodepgq._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:rn94 discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/241205-s8rw4axkep/
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:
Malicious
Tags:
Win.Dropper.Nanocore-10025638-0
YARA:
n/a
Link:
https://app.threat.zone/submission/fb0c72c2-d381-4f2c-bd4f-73a709c75a1a
Unpacked files
SH256 hash:
e43c25ff7178824b172aa9de2e985b0ccb53562e97da4dc7f34ea0c5515ebf00
MD5 hash:
489d620aedc30017f7636236be8f7741
SHA1 hash:
535bac391ea7b051a50897de5faad5ca9b9d44af
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/a368e8e4-34c8-4401-a48e-dc50d4ea9fb1/
Parent samples :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 hash:
0f6279fe4d6a8f7864d64f28c7487e36868f0df7969c552a73339d3b3ed41187
MD5 hash:
e87b53bd8b63b8eda0523f71755c3675
SHA1 hash:
95251712b3416d266b696b9ebe4528f5744daded
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/a368e8e4-34c8-4401-a48e-dc50d4ea9fb1/
SH256 hash:
682c261fcd08c676ef231f46eac1c054c8df17522846b9e4adbafb62e8482dab
MD5 hash:
5a6cead6de3340dd9e0b16d599e5d1f5
SHA1 hash:
00e25f93284ff0d2493c6df3a596891d0848399e
Link:
https://www.unpac.me/results/a368e8e4-34c8-4401-a48e-dc50d4ea9fb1/
SH256 hash:
2817a9a6fc061c9f8e6e7c341b778b403ceaeb439cb8e40760c908ada5c323cd
MD5 hash:
1d278e311f71d28a7b468c9e8c42d3e8
SHA1 hash:
9deb9da31e00f63d2a607d717c26a3d29e1ded5f
Link:
https://www.unpac.me/results/a368e8e4-34c8-4401-a48e-dc50d4ea9fb1/
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/2817a9a6fc061c9f8e6e7c341b778b403ceaeb439cb8e40760c908ada5c323cd

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:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
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_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:RansomPyShield_Antiransomware
Create hunting rule
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
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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