MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cd9790c56c1985027868b7b9fc65201f36ee52a7413e4edbd89274ad6445f679. 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: 14


Intelligence 14 IOCs YARA 9 File information Comments
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SHA256 hash: cd9790c56c1985027868b7b9fc65201f36ee52a7413e4edbd89274ad6445f679
SHA3-384 hash: 245fb9d68a320ef5d4705c8c0b46efb61ca3d166a6ca6e93e884dc40a22871bca03e3a7a6f3898c9da3a0a90324e1c7d
SHA1 hash: 70561cc2d0180b75258afdcc53bfd5386d2cf26b
MD5 hash: 1c71daa64b79a678b23b2863a17f8142
humanhash: yellow-red-sink-eleven
File name:SecuriteInfo.com.Trojan.DownloaderNET.345.15781.22249
Download: download sample
Signature Formbook
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File size:430'656 bytes
First seen:2022-08-23 01:31:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:cRS5fVFNsR90X0fwzAVnWGqggido2s5Bn1YP0tMgXxXKi27:cC/s30X0WA9HNgiun1Y8tMgXEf7
TLSH T1669439F0317D83C3E1A18EB10FCA86B079F175ACA8D0560DA0F99B2D93D2395149D9EE
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon d4a6a494a48484a4 (65 x AgentTesla, 39 x Formbook, 8 x RemcosRAT)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
316
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
SecuriteInfo.com.Trojan.DownloaderNET.345.15781.22249
Verdict:
Malicious activity
Analysis date:
2022-08-23 01:32:09 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/b33dd465-5b74-4588-a0d2-a027e449fb98

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/300363/
Detection(s):
SecuriteInfo.com.Trojan.DownloaderNET.345.15781.22249.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
Searching for synchronization primitives
Сreating synchronization primitives
Launching cmd.exe command interpreter
Reading critical registry keys
Setting browser functions hooks
Forced shutdown of a system process
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated overlay packed
Link:
https://www.filescan.io/uploads/63042ded13d4422dbbbab520/reports/5e123108-93ec-494c-974b-173c725dffcc/overview
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/58b35328-c94d-44c2-91dd-d3e11c763417
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1055958
Signature
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Injects a PE file into a foreign processes
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 688471 Sample: SecuriteInfo.com.Trojan.Dow... Startdate: 23/08/2022 Architecture: WINDOWS Score: 100 31 www.fieldjoys.com 2->31 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus detection for URL or domain 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 5 other signatures 2->41 11 SecuriteInfo.com.Trojan.DownloaderNET.345.15781.exe 1 2->11         started        signatures3 process4 file5 29 SecuriteInfo.com.T...T.345.15781.exe.log, ASCII 11->29 dropped 51 Writes to foreign memory regions 11->51 53 Allocates memory in foreign processes 11->53 55 Injects a PE file into a foreign processes 11->55 57 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 11->57 15 cvtres.exe 11->15         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 65 2 other signatures 15->65 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.patrickpmartens.com 99.83.154.118, 49783, 80 AMAZON-02US United States 18->33 43 System process connects to network (likely due to code injection or exploit) 18->43 22 help.exe 18->22         started        signatures11 process12 signatures13 45 Modifies the context of a thread in another process (thread injection) 22->45 47 Maps a DLL or memory area into another process 22->47 49 Tries to detect virtualization through RDTSC time measurements 22->49 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/cd9790c56c1985027868b7b9fc65201f36ee52a7413e4edbd89274ad6445f679/
Threat name:
ByteCode-MSIL.Spyware.Noon
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Status:
Malicious
First seen:
2022-08-23 00:07:47 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
24 of 40 (60.00%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zwlzbrlmdgcqe6diw647yzjad43o4uvhie7e5w6ysj2k2zcf6z4q._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:bd26 rat spyware stealer trojan
Link:
https://tria.ge/reports/220823-bxy3laafb4/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
b8c8421c52f6febd8d9201050af41b9b09fb2408b2eb05538efaa8c64e8b0436
MD5 hash:
373fec458d19c871e6cf5cb807ba7e7b
SHA1 hash:
12dcf8e39817e9907cb5fb9dbaed00505eb40105
Detections:
win_formbook_g0
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win_formbook_auto
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FormBook
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Link:
https://www.unpac.me/results/99d530db-fc6d-4690-9481-cd80db46189b/
Parent samples :
cd9790c56c1985027868b7b9fc65201f36ee52a7413e4edbd89274ad6445f679
89e6f9466b625c976d594094359d85f257f40bdb4ab80c22c99c36c01f1dc72f
SH256 hash:
2a9f1466033a05cfbabc6be8b94269b62f5d9723d1b4d1f71eccea39221c85c6
MD5 hash:
e378179913a2b8a5ffab15ac1505188b
SHA1 hash:
8f7c754863118f06bc23b48813b478f5f8df4c45
Link:
https://www.unpac.me/results/99d530db-fc6d-4690-9481-cd80db46189b/
SH256 hash:
cd9790c56c1985027868b7b9fc65201f36ee52a7413e4edbd89274ad6445f679
MD5 hash:
1c71daa64b79a678b23b2863a17f8142
SHA1 hash:
70561cc2d0180b75258afdcc53bfd5386d2cf26b
Link:
https://www.unpac.me/results/99d530db-fc6d-4690-9481-cd80db46189b/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/cd9790c56c19/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/cd9790c56c1985027868b7b9fc65201f36ee52a7413e4edbd89274ad6445f679

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:INDICATOR_KB_CERT_1f3216f428f850be2c66caa056f6d821
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/300363/

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