MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 46a0a8595dccf134213c2e9ae10dd6fdd8e3ff5f0cb1b01014a6b67e31927eec. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments

SHA256 hash: 46a0a8595dccf134213c2e9ae10dd6fdd8e3ff5f0cb1b01014a6b67e31927eec
SHA3-384 hash: 5927d21052b08751504368de55d5858c19f3a1a39927ea4b60e283ae0598cd91d5da000e97cd0a9a72e4f9a28708e41d
SHA1 hash: a671570c31428ebc9bee30c9a2b9963bf629560a
MD5 hash: c8a5346cb632c91e0006252fd2c47bec
humanhash: fifteen-jupiter-massachusetts-football
File name:PO_101&102.exe
Download: download sample
Signature Formbook
File size:684'032 bytes
First seen:2021-10-27 22:34:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'665 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:fhwV/8FumO5ZBLbGZ3EEFdmgTSuAReaSA7hqJFTP:fmV/8FumO/B3GtnmRufo7hq
Threatray 10'899 similar samples on MalwareBazaar
TLSH T16DE4AE725299AF49E63F6BB4686012014FF53E435F3DD718DEE400D618E2ED08F2BA96
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
152
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Launching a process
Launching cmd.exe command interpreter
Launching the default Windows debugger (dwwin.exe)
Possible injection to a system process
Unauthorized injection to a system process
Deleting of the original file
Gathering data
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:
Malicious Packer
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
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
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
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: 510600 Sample: PO_101&102.exe Startdate: 28/10/2021 Architecture: WINDOWS Score: 100 33 www.francinegeorges.com 2->33 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus detection for URL or domain 2->41 43 10 other signatures 2->43 11 PO_101&102.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\PO_101&102.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_101&102.exe 11->15         started        18 PO_101&102.exe 11->18         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 20 explorer.exe 15->20 injected process9 dnsIp10 35 www.reynbetgirisi.com 185.178.208.163, 49816, 80 DDOS-GUARDRU Russian Federation 20->35 45 System process connects to network (likely due to code injection or exploit) 20->45 24 svchost.exe 20->24         started        signatures11 process12 signatures13 47 Self deletion via cmd delete 24->47 49 Modifies the context of a thread in another process (thread injection) 24->49 51 Maps a DLL or memory area into another process 24->51 53 Tries to detect virtualization through RDTSC time measurements 24->53 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Threat name:
ByteCode-MSIL.Spyware.Noon
Status:
Malicious
First seen:
2021-10-27 19:22:00 UTC
AV detection:
10 of 28 (35.71%)
Threat level:
  2/5
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:
aa5ef95e2ebd532907068dd2eb4fe5fa495e9986f3931589886fefb7961fa7f5
MD5 hash:
d27aaae6682509811a50b93a846b1565
SHA1 hash:
d7517fe8321462aa150fd220364ae1c6bf29840b
SH256 hash:
768dda6e970d6ecb7c01e3d30be8116190e02da3f41c92fd7914a9952adeef96
MD5 hash:
cec4ce5eb5fa7eb6abcdcc09779e4eec
SHA1 hash:
861baa472e0aa81d5671e9ea8c8f8c7cd4d68464
SH256 hash:
43e38f251dbca9aa20f3470167e5427a7e7a7cdcd25f0b6b045ae8577cd3e345
MD5 hash:
f62ab5d3528d5a3b9e270ea1f9347868
SHA1 hash:
6a74e87711c615adbd9145f829a33f55b7e42dd6
SH256 hash:
46a0a8595dccf134213c2e9ae10dd6fdd8e3ff5f0cb1b01014a6b67e31927eec
MD5 hash:
c8a5346cb632c91e0006252fd2c47bec
SHA1 hash:
a671570c31428ebc9bee30c9a2b9963bf629560a
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: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 46a0a8595dccf134213c2e9ae10dd6fdd8e3ff5f0cb1b01014a6b67e31927eec

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

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