MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a3a0f6ef77d8d2270b5baac5ac9185bdf9e30351e61cb6f7a90c76601e004b15. 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: 17


Intelligence 17 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a3a0f6ef77d8d2270b5baac5ac9185bdf9e30351e61cb6f7a90c76601e004b15
SHA3-384 hash: f32b60adaa803ca65b07a27bf6ff7adcdb71fe95847302823bb9fbc28ad58a609119cfc39370fbd4951715abc0343cac
SHA1 hash: 9f804c5d474f723f6c08cac07569c237c25286a7
MD5 hash: a666dc5c6765f6912878fc840aceaf82
humanhash: equal-edward-whiskey-whiskey
File name:a666dc5c6765f6912878fc840aceaf82.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:614'912 bytes
First seen:2024-09-25 16:26:06 UTC
Last seen:2024-09-25 18:28:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:hhr8bQb07Lo2kJc9SkHKksvXYXaGtfTiGEXV9JT6newNcGn:gIEcWSkMvoKGtfTiGAWqW
TLSH T1A9D41250329AD513D8825BB10A73D2F857792D8DA862C30B9FD93DEF7C7A385A980353
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
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

Intelligence

File Origin
# of uploads :
2
# of downloads :
415
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a666dc5c6765f6912878fc840aceaf82.exe
Verdict:
No threats detected
Analysis date:
2024-09-25 16:35:32 UTC
Tags:
netreactor
Link:
https://app.any.run/tasks/0e4f5c08-e7ff-47bc-a759-4ddd696411ea

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.12027.28310.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66f439d9c5ef4567b6c99b4a
Tags:
Execution Generic Static Stealth Swotter Powershell Tori Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
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:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/66f439e0dcb7aa64740f5bd9/reports/59601545-e4f7-41ea-b7ae-8b052454c49b/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a3a0f6ef77d8d2270b5baac5ac9185bdf9e30351e61cb6f7a90c76601e004b15
Result
Verdict:
UNKNOWN
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/58a12874-1370-44f5-a396-b0daac87aedd
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1518487
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious 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
Injects a PE file into a foreign processes
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: 1518487 Sample: TRmSF36qQG.exe Startdate: 25/09/2024 Architecture: WINDOWS Score: 100 41 www.sswhbcybvcffv.xyz 2->41 43 www.fy489tysiot4twoinsr3295y78h.xyz 2->43 45 12 other IPs or domains 2->45 59 Suricata IDS alerts for network traffic 2->59 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 67 9 other signatures 2->67 11 TRmSF36qQG.exe 4 2->11         started        signatures3 65 Performs DNS queries to domains with low reputation 43->65 process4 file5 39 C:\Users\user\AppData\...\TRmSF36qQG.exe.log, ASCII 11->39 dropped 71 Adds a directory exclusion to Windows Defender 11->71 73 Tries to detect virtualization through RDTSC time measurements 11->73 75 Injects a PE file into a foreign processes 11->75 77 Switches to a custom stack to bypass stack traces 11->77 15 TRmSF36qQG.exe 11->15         started        18 powershell.exe 23 11->18         started        20 TRmSF36qQG.exe 11->20         started        22 TRmSF36qQG.exe 11->22         started        signatures6 process7 signatures8 79 Modifies the context of a thread in another process (thread injection) 15->79 81 Maps a DLL or memory area into another process 15->81 83 Sample uses process hollowing technique 15->83 87 2 other signatures 15->87 24 explorer.exe 90 7 15->24 injected 85 Loading BitLocker PowerShell Module 18->85 28 WmiPrvSE.exe 18->28         started        30 conhost.exe 18->30         started        process9 dnsIp10 47 www.zhxgtlw.top 188.114.97.3, 49718, 80 CLOUDFLARENETUS European Union 24->47 49 techtalks.live 3.33.130.190, 49716, 49722, 80 AMAZONEXPANSIONGB United States 24->49 51 2 other IPs or domains 24->51 69 System process connects to network (likely due to code injection or exploit) 24->69 32 msiexec.exe 24->32         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 32->53 55 Maps a DLL or memory area into another process 32->55 57 Switches to a custom stack to bypass stack traces 32->57 35 cmd.exe 1 32->35         started        process14 process15 37 conhost.exe 35->37         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a3a0f6ef77d8d2270b5baac5ac9185bdf9e30351e61cb6f7a90c76601e004b15
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a3a0f6ef77d8d2270b5baac5ac9185bdf9e30351e61cb6f7a90c76601e004b15/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-09-25 14:41:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uoqpn33x3djcoc23vlc2zemfxx46ga2r4yoln55jbr3gahqajmkq._file
Verdict:
malicious
Label(s):
unknown_loader_037
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:bopi discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/240925-tx31nayckg/
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
Verdict:
Malicious
Tags:
formbook
YARA:
n/a
Link:
https://app.threat.zone/submission/ca71d30d-bec0-4a57-af58-ff793385cea6
Unpacked files
SH256 hash:
f3483a2e6be413e58b06fb59ae11733b2dc48b4ba3b62cb94f5594cb8ffff4b2
MD5 hash:
c2fb127c9db2f27901d4b9644035b3dd
SHA1 hash:
1c01d310b2d3a14b1b3b7c23951eb18fbeb7931e
Detections:
FormBook
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_w0
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/cdacf03d-2f9c-4b11-acf5-cc8eb015c8e7/
Parent samples :
a3a0f6ef77d8d2270b5baac5ac9185bdf9e30351e61cb6f7a90c76601e004b15
6b9ab74ddb1e7164be432138c6bff37f0a473611558e658192dac57212739608
80b8981399b2ae1ff2daa59de97262c5834ea95669a620fbfe54e603c31dbe6f
689f9349a8558c9d99cf0f6131fa14cdb7f26e77c5f79de66695ab5d970b2759
542b483ca926aa71f97e7db19cc42fdb537d103aa7756be623ed922c39c9f112
SH256 hash:
a1c5d91ad5ebde079e540ff7f746b78ca0e8fe2440e4297ca63c52a39bac58ff
MD5 hash:
deade058556a07fda1811320a986addc
SHA1 hash:
48ddb444d70577d5e0d485a2fc20a8b438154d22
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/cdacf03d-2f9c-4b11-acf5-cc8eb015c8e7/
SH256 hash:
34f9c0f82364c97a1737470fd73c632cb00050d9ce92f01dd028ef66e9612de2
MD5 hash:
6ef08575b2126993b638d36c5fabcdad
SHA1 hash:
0875b6c295608b7b3ead7143258d7ba5cabe10fd
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/cdacf03d-2f9c-4b11-acf5-cc8eb015c8e7/
Parent samples :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 hash:
a3a0f6ef77d8d2270b5baac5ac9185bdf9e30351e61cb6f7a90c76601e004b15
MD5 hash:
a666dc5c6765f6912878fc840aceaf82
SHA1 hash:
9f804c5d474f723f6c08cac07569c237c25286a7
Link:
https://www.unpac.me/results/cdacf03d-2f9c-4b11-acf5-cc8eb015c8e7/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a3a0f6ef77d8/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/a3a0f6ef77d8d2270b5baac5ac9185bdf9e30351e61cb6f7a90c76601e004b15

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
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Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Formbook

Executable exe a3a0f6ef77d8d2270b5baac5ac9185bdf9e30351e61cb6f7a90c76601e004b15

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3191208/
  
Delivery method
Distributed via web download

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