MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f8a6d38a7a548a8621059aaaa87265c7c8d164b0f8eac7f6c0f7e4ec201de4a2. 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 8 File information Comments
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SHA256 hash: f8a6d38a7a548a8621059aaaa87265c7c8d164b0f8eac7f6c0f7e4ec201de4a2
SHA3-384 hash: 4d4c8a8d6b44d8f69d7aaf1cfa1421e7d43322c739fe04cf2ff10081b23234e12d85e5048521ec0d0001675a43bc45d3
SHA1 hash: dfa50083c7dd8caabdf1abf9a72cee128c32fe3c
MD5 hash: 47a2a7a19ce5697f30aec774d5b7f9b7
humanhash: charlie-juliet-video-fillet
File name:FedEx_ shipping documentations.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:707'592 bytes
First seen:2024-07-18 05:45:25 UTC
Last seen:2024-07-24 23:13:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:baODWx2PQfDxCP5M90yYgo2HckARGXHn4tOBPb5np2Fna1u4HkR:bxawMDIGiIJ0GXHnaONnp8n2S
Threatray 1'313 similar samples on MalwareBazaar
TLSH T109E40252B7E91F08D8B62BB0E674811157F7B5312B35D31EADD820CD1DA27C08B2A76B
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 78dc9adce086c460 (9 x Formbook, 1 x SnakeKeylogger, 1 x AgentTesla)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
357
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
Win.Packed.Remcos-10033377-0
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6698ac1e715586f538b3a8cf
Tags:
Encryption Execution Network Static Stealth Msil
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
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching cmd.exe command interpreter
Setting browser functions hooks
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade overlay packed remcos
Link:
https://www.filescan.io/uploads/6698ac1ccbb32227b6a897e9/reports/307deefe-31af-4b9b-80ca-29d24132728b/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/f8a6d38a7a548a8621059aaaa87265c7c8d164b0f8eac7f6c0f7e4ec201de4a2
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/5b66f458-4424-47a7-a4be-aecd188f3aa1
Result
Threat name:
FormBook, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1475660
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
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
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
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 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)
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Rare Remote Thread Creation By Uncommon Source Image
Sigma detected: Rundll32 Execution Without CommandLine Parameters
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Suspicious powershell command line found
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1475660 Sample: FedEx_ shipping documentati... Startdate: 18/07/2024 Architecture: WINDOWS Score: 100 69 www.8uh85t.xyz 2->69 71 xiaozhi.b.cloudfastly.net 2->71 73 14 other IPs or domains 2->73 89 Snort IDS alert for network traffic 2->89 91 Found malware configuration 2->91 93 Malicious sample detected (through community Yara rule) 2->93 97 20 other signatures 2->97 11 FedEx_ shipping documentations.exe 7 2->11         started        15 NDvhFxac.exe 5 2->15         started        signatures3 95 Performs DNS queries to domains with low reputation 69->95 process4 file5 55 C:\Users\user\AppData\Roaming55DvhFxac.exe, PE32 11->55 dropped 57 C:\Users\...57DvhFxac.exe:Zone.Identifier, ASCII 11->57 dropped 59 C:\Users\user\AppData\Local\...\tmp17F5.tmp, XML 11->59 dropped 61 C:\...\FedEx_ shipping documentations.exe.log, ASCII 11->61 dropped 99 Suspicious powershell command line found 11->99 101 Adds a directory exclusion to Windows Defender 11->101 103 Injects a PE file into a foreign processes 11->103 17 FedEx_ shipping documentations.exe 11->17         started        20 powershell.exe 22 11->20         started        22 powershell.exe 23 11->22         started        24 schtasks.exe 1 11->24         started        105 Multi AV Scanner detection for dropped file 15->105 107 Machine Learning detection for dropped file 15->107 109 Tries to detect virtualization through RDTSC time measurements 15->109 111 Switches to a custom stack to bypass stack traces 15->111 26 NDvhFxac.exe 15->26         started        28 schtasks.exe 15->28         started        30 NDvhFxac.exe 15->30         started        signatures6 process7 signatures8 75 Modifies the context of a thread in another process (thread injection) 17->75 77 Maps a DLL or memory area into another process 17->77 79 Sample uses process hollowing technique 17->79 81 Queues an APC in another process (thread injection) 17->81 32 explorer.exe 90 1 17->32 injected 83 Loading BitLocker PowerShell Module 20->83 36 conhost.exe 20->36         started        38 WmiPrvSE.exe 20->38         started        40 conhost.exe 22->40         started        42 conhost.exe 24->42         started        85 Found direct / indirect Syscall (likely to bypass EDR) 26->85 44 conhost.exe 28->44         started        process9 dnsIp10 63 wukunstudio.com.lv1725.faipod.com 152.32.170.174, 53766, 80 UHGL-AS-APUCloudHKHoldingsGroupLimitedHK Hong Kong 32->63 65 xiaozhi.b.cloudfastly.net 38.91.112.174, 53769, 80 SPECTRUMLINKUS United States 32->65 67 2 other IPs or domains 32->67 87 System process connects to network (likely due to code injection or exploit) 32->87 46 wscript.exe 32->46         started        49 rundll32.exe 32->49         started        signatures11 process12 signatures13 113 Modifies the context of a thread in another process (thread injection) 46->113 115 Maps a DLL or memory area into another process 46->115 117 Tries to detect virtualization through RDTSC time measurements 46->117 119 Switches to a custom stack to bypass stack traces 46->119 51 cmd.exe 46->51         started        process14 process15 53 conhost.exe 51->53         started       
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f8a6d38a7a548a8621059aaaa87265c7c8d164b0f8eac7f6c0f7e4ec201de4a2
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f8a6d38a7a548a8621059aaaa87265c7c8d164b0f8eac7f6c0f7e4ec201de4a2/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2024-07-15 02:53:01 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7ctnhct2ksfimiiftkvkq4tfy7enczfq7dvmp5wa67soyia54sra._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0b2881dffc8cd0c36764d955f9478964c95822672da0f5ba29a5af5c16059b16
Formbook
9022ec12d1c63779111d34993afd7aa58f7a7ed7087271c52f2300dee80c7f89
Formbook
93aeb18c52bece32042f39cbce6994036ac8556043fdc335bb3fc1453ce8d74f
Formbook
a4de39a318f8fb37cf0ac7f320a6cf7f8b68a403ea26d3c5f8b82630f6693b70
Formbook
b362ced287b5f00b3b2ab2c3a7bbc85b57e13271d76a6c65423a831fde92876c
Formbook
e1153fa8e128ce45bc1fd82c073aa9724653ae65a621f7accf41a7b4ea542906
Formbook
+ 1'303 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:dk07 execution rat spyware stealer trojan
Link:
https://tria.ge/reports/240718-ggbj9azhma/
Behaviour
Modifies registry class
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e8c88901-38be-4dad-8357-6a32964fb939
Unpacked files
SH256 hash:
69204e2666e639a6b311367a7ca18c34f98be07044a5669c4e39287bf991fe77
MD5 hash:
e1cb55e1860f0a3203d8a5635a6db7f1
SHA1 hash:
1a69a2ea2422b4c51ec22dc41d93bed099b9b4db
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/40b4ae7e-842e-4dd6-b6a9-d67e6e3a460b/
Parent samples :
412f36cadb0568c43f0738c6a832f9096fa5692c8271b1e322b570152084dc31
a4de39a318f8fb37cf0ac7f320a6cf7f8b68a403ea26d3c5f8b82630f6693b70
f8a6d38a7a548a8621059aaaa87265c7c8d164b0f8eac7f6c0f7e4ec201de4a2
ff71f15233f91775480dcf0afc68b296338b6bbe8d8c6a72a50ed76c264aa619
SH256 hash:
8f3a1d6163c2ac7ec9ad2000315c5eef3c2fb0de345029d2dc5f76fa221f34f2
MD5 hash:
aa625654b69aa9f9e7208a2d0b10affd
SHA1 hash:
a7a74d8a0e74b3a18a1bb347f5771324b38831a6
Link:
https://www.unpac.me/results/40b4ae7e-842e-4dd6-b6a9-d67e6e3a460b/
SH256 hash:
1bb4840538b8a367866894b14c4aa62c2905fe4ec8ebd633fb8c8c8864a37293
MD5 hash:
222df17caf2704d5edc6772d672cd705
SHA1 hash:
27851dd2812599b460335dd978110260fda327e1
Link:
https://www.unpac.me/results/40b4ae7e-842e-4dd6-b6a9-d67e6e3a460b/
SH256 hash:
1914c8b4758afa32360cf0d8bdb9e22702af25252404dacd6188c7574948feff
MD5 hash:
4c88049b15b8948db110a66c4210bf1b
SHA1 hash:
057d27b8dd4ef39aaad8b9154244397a5ff2110e
Link:
https://www.unpac.me/results/40b4ae7e-842e-4dd6-b6a9-d67e6e3a460b/
Parent samples :
d43fa50daa883b42bb53678fcb1a9e956bbdb6bb6256ddaefcf5e4dadad450dd
0955e1c717cfb3cc4b97d2e22f2e1f6493b6afa62f94e8d068baa3946f47f820
5474194c07b4f0b5144069d189cd55adfd2e9e8e89bbbdba6153e173a094ff42
SH256 hash:
f8a6d38a7a548a8621059aaaa87265c7c8d164b0f8eac7f6c0f7e4ec201de4a2
MD5 hash:
47a2a7a19ce5697f30aec774d5b7f9b7
SHA1 hash:
dfa50083c7dd8caabdf1abf9a72cee128c32fe3c
Link:
https://www.unpac.me/results/40b4ae7e-842e-4dd6-b6a9-d67e6e3a460b/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f8a6d38a7a54/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/f8a6d38a7a548a8621059aaaa87265c7c8d164b0f8eac7f6c0f7e4ec201de4a2

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:NETexecutableMicrosoft
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: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.

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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