MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8ecd7246088fc67799052a71fe254fe745cc4b66eb75c0e2b1285a3a9b467bb0. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
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SHA256 hash: 8ecd7246088fc67799052a71fe254fe745cc4b66eb75c0e2b1285a3a9b467bb0
SHA3-384 hash: e4b62176a49bfc2587ff88b78b014fa7f5500e51331cbb6f9e96488b66974ee243f8f09b7c0ea271964e7ffabb3276b0
SHA1 hash: b243280102c85aff02c733a2751833063ebac536
MD5 hash: c3abf46b7a251bfbe02be76e85cf8b83
humanhash: failed-purple-blue-violet
File name:triage_dropped_file
Download: download sample
Signature Formbook
Create hunting rule
File size:181'248 bytes
First seen:2022-04-19 13:22:34 UTC
Last seen:2022-04-19 13:34:48 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 384:Uw8VX5NYGyt6Zffffff09kDojhlyFPgGzb+zybOVfZZgNQKBeDv:iYpkDotlyF4G3+ObEfZZgg
Threatray 15'248 similar samples on MalwareBazaar
TLSH T1AD046089DD5C842CCE782AF60812F1B0CE297E897E5C9959ED44BB163933621C67DB33
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon b9dc8cccdeded9b8 (12 x AgentTesla, 7 x Formbook, 7 x NanoCore)
Reporter malwarelabnet
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
257
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/264628/
Detection(s):
SecuriteInfo.com.Trojan.DownloaderNET.367.31377.11118.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe obfuscated packed
Link:
https://www.filescan.io/uploads/625eb7b7ffe27d51190c0656/reports/8faaa7d7-4047-4e01-abb3-e4f734a7ac5e/overview
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/cf4a1073-e8ac-4270-b91b-94cf0f078831
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/978863
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 611350 Sample: triage_dropped_file Startdate: 19/04/2022 Architecture: WINDOWS Score: 100 66 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->66 68 Found malware configuration 2->68 70 Malicious sample detected (through community Yara rule) 2->70 72 6 other signatures 2->72 10 triage_dropped_file.exe 16 7 2->10         started        process3 dnsIp4 64 3.70.247.229, 49713, 49718, 49719 AMAZON-02US United States 10->64 58 C:\Users\user\AppData\Roaming\...\Ltscay.exe, PE32 10->58 dropped 60 C:\Users\user\...\Ltscay.exe:Zone.Identifier, ASCII 10->60 dropped 62 C:\Users\user\...\triage_dropped_file.exe.log, ASCII 10->62 dropped 14 InstallUtil.exe 10->14         started        17 cmd.exe 1 10->17         started        file5 process6 signatures7 90 Modifies the context of a thread in another process (thread injection) 14->90 92 Maps a DLL or memory area into another process 14->92 94 Sample uses process hollowing technique 14->94 96 2 other signatures 14->96 19 explorer.exe 3 1 14->19 injected 21 wlanext.exe 14->21         started        24 conhost.exe 17->24         started        26 timeout.exe 1 17->26         started        process8 signatures9 28 Ltscay.exe 14 4 19->28         started        31 Ltscay.exe 3 19->31         started        33 help.exe 19->33         started        35 chkdsk.exe 19->35         started        74 Maps a DLL or memory area into another process 21->74 76 Tries to detect virtualization through RDTSC time measurements 21->76 37 cmd.exe 21->37         started        process10 signatures11 84 Multi AV Scanner detection for dropped file 28->84 86 Machine Learning detection for dropped file 28->86 88 Tries to detect virtualization through RDTSC time measurements 28->88 39 Ltscay.exe 28->39         started        42 cmd.exe 28->42         started        44 Ltscay.exe 31->44         started        46 cmd.exe 31->46         started        48 conhost.exe 37->48         started        process12 signatures13 78 Modifies the context of a thread in another process (thread injection) 39->78 80 Maps a DLL or memory area into another process 39->80 82 Sample uses process hollowing technique 39->82 50 conhost.exe 42->50         started        52 timeout.exe 42->52         started        54 conhost.exe 46->54         started        56 timeout.exe 46->56         started        process14
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/8ecd7246088fc67799052a71fe254fe745cc4b66eb75c0e2b1285a3a9b467bb0/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-04-19 10:33:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
25
AV detection:
21 of 42 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=r3gxerqir7dhpgiffjy74jkp45c4ys3g5n24byvrfbndvg2gpoya._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0c66120f301e6e13d6b760c5a63f36aed5fd338626a5abfab3f3750b7302d992
Formbook
1c1307eefcccf13fa510b275d6286cae2b6d6fdd5c656d0fe5d5479c09df3310
Formbook
519a77b3e875886add3b2e84ac63cb9e9707381fce9d25d79616554d4c6c2287
Formbook
650baaf8397e4aa4925a88c44c5ab63f5b61b4c03607eb511b3bd6dc6d98f652
Formbook
6d1ae3278059d592ae7c4426df9456553b8abfbc3bd90ce0f8d1792e94ae95c2
Formbook
9504b7d70560189218da2f73a816ed686e6f52373dd025a79ddbc1a0e74cf33c
Formbook
c652919676cc6f3ea808c6e1023de343d27ed8f72f4f1b94523c4ecfb09bf223
Formbook
c8f9dc774ab6e27b3116b72c28e68a88e087bc1648c1a96509c26e33575ba9cc
Formbook
d7fb7846545905a86a059da93c28f6f14a12b4ff9148b801f7238e75d75036c7
Formbook
+ 15'238 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:tu46 persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/220419-qmskdsdfe4/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Formbook Payload
Formbook
Unpacked files
SH256 hash:
8ecd7246088fc67799052a71fe254fe745cc4b66eb75c0e2b1285a3a9b467bb0
MD5 hash:
c3abf46b7a251bfbe02be76e85cf8b83
SHA1 hash:
b243280102c85aff02c733a2751833063ebac536
Link:
https://www.unpac.me/results/80942bc4-38ed-4f57-89aa-3f3df029c830/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8ecd7246088f/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/8ecd7246088fc67799052a71fe254fe745cc4b66eb75c0e2b1285a3a9b467bb0

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_EXE_Packed_SmartAssembly
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Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:pe_imphash
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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 8ecd7246088fc67799052a71fe254fe745cc4b66eb75c0e2b1285a3a9b467bb0

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/264628/
  
URLhaus
https://urlhaus.abuse.ch/url/2155125/
  
Delivery method
Distributed via web download

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