MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dbf442323e19a477370d316dbbd389f48ce8c93ebd119fdb319be4f3f82d4b7f. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments

SHA256 hash: dbf442323e19a477370d316dbbd389f48ce8c93ebd119fdb319be4f3f82d4b7f
SHA3-384 hash: 801f26f41ec90be5be14870ea56f73b921583a33a8260bfa1d03ff7e2bdd1d13e7aa8af15962f7eff2b32abdadcc0cb4
SHA1 hash: 48ec85c314157d9a3d5416c2e7c71cac920762a4
MD5 hash: 7dd83d33a8462eff9f65ddb4d326b3d5
humanhash: papa-kitten-lithium-helium
File name:PO#101581.exe
Download: download sample
Signature Formbook
File size:605'696 bytes
First seen:2021-11-09 12:57:33 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:7zEPGlqJFTPvd2382+I9I7TEV0u/VJDvUCyau7QrmStqdPVVr1F:PqP2L1V0uthvUC/uh
Threatray 11'065 similar samples on MalwareBazaar
TLSH T188D4AD7A3111BDDFDD378EF58950AC70AEA43867532EC24398B7059AFACE492CE144E1
File icon (PE):PE icon
dhash icon 3e3d697e3c3c1f1f (11 x AgentTesla, 7 x Formbook)
Reporter TeamDreier
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
155
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
Self deletion via cmd delete
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 518471 Sample: PO#101581.exe Startdate: 09/11/2021 Architecture: WINDOWS Score: 100 33 www.jjglassmi1.com 2->33 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 Multi AV Scanner detection for submitted file 2->41 43 7 other signatures 2->43 11 PO#101581.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\PO#101581.exe.log, ASCII 11->31 dropped 55 Tries to detect virtualization through RDTSC time measurements 11->55 57 Injects a PE file into a foreign processes 11->57 15 PO#101581.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 Queues an APC in another process (thread injection) 15->65 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.hdszbj.com 23.107.98.159, 49807, 80 LEASEWEB-USA-LAX-11US United States 18->35 45 System process connects to network (likely due to code injection or exploit) 18->45 22 systray.exe 18->22         started        25 autochk.exe 18->25         started        signatures11 process12 signatures13 47 Self deletion via cmd delete 22->47 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 27 cmd.exe 1 22->27         started        process14 process15 29 conhost.exe 27->29         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-11-09 05:38:38 UTC
AV detection:
28 of 44 (63.64%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:snr6 rat spyware stealer trojan
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
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.reynbetgirisi.com/snr6/
Unpacked files
SH256 hash:
a24b017645ad75f78552719251c33471c0a92f3cc19578db10b0ede79fb85556
MD5 hash:
ed4b0496fe05020acdf441fbaa04c7ae
SHA1 hash:
84ab04cd144a22b7f8e9e8d1a1c32d412857dc94
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
d9de0002d4451d4b9a84ee501981a6c25598ca2dc9b08b27498dae777b9aa9cd
MD5 hash:
0d1d1b6bcecd99620f165d924958c762
SHA1 hash:
e8ddb98ec14318a780c444cb84c31724fe2f7a93
SH256 hash:
43e38f251dbca9aa20f3470167e5427a7e7a7cdcd25f0b6b045ae8577cd3e345
MD5 hash:
f62ab5d3528d5a3b9e270ea1f9347868
SHA1 hash:
6a74e87711c615adbd9145f829a33f55b7e42dd6
SH256 hash:
dbf442323e19a477370d316dbbd389f48ce8c93ebd119fdb319be4f3f82d4b7f
MD5 hash:
7dd83d33a8462eff9f65ddb4d326b3d5
SHA1 hash:
48ec85c314157d9a3d5416c2e7c71cac920762a4
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Malspam

Formbook

Executable exe dbf442323e19a477370d316dbbd389f48ce8c93ebd119fdb319be4f3f82d4b7f

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments