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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 28ebdc57f4de0a5f04d5ac0c8f17996d257df911de9900c3e6db1f1e213383b7. 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: 10


Intelligence 10 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 28ebdc57f4de0a5f04d5ac0c8f17996d257df911de9900c3e6db1f1e213383b7
SHA3-384 hash: 6385a849048630e299105b053624c09c829919e2af3f291c1af47f0480065e01fbc2378f79dc69ad7f55e8a5f978d8ab
SHA1 hash: e398beeabb7ebfbccf114d6395fb64a41804f3b7
MD5 hash: 89a6dc954700b85bfe4290091f475ee0
humanhash: earth-butter-don-bravo
File name:DB_ajdi838893noticeArrival.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:565'248 bytes
First seen:2020-08-30 15:43:53 UTC
Last seen:2020-08-30 16:50:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'234 x AgentTesla, 20'488 x Formbook, 12'372 x SnakeKeylogger)
ssdeep 12288:AJv4HHnUDF31uE3pyNTzevUJdD/4z9463wK8gK+:AJv4HHUDBgrNvW6D+/wK8J+
TLSH 90C41280730C895AC6CE073F6075CD2C2B79B5F56062CF4DF89C6A9ACAA5B90D470767
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: smtp.outgoing.loopia.se
Sending IP: 93.188.3.52
From: autonotificationimports@maersk.com <info@bsskimpex.se>
Subject: Arrival notice 203116617
Attachment: DB_ajdi838893noticeArrival.img (contains "DB_ajdi838893noticeArrival.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
163
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/53145/
Detection(s):
SecuriteInfo.com.Variant.Bulz.72965.12266.24181.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a file
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/454685
Signature
Benign windows process drops PE files
Detected FormBook malware
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Initial sample is a PE file and has a suspicious name
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 domain / URL
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 279714 Sample: DB_ajdi838893noticeArrival.exe Startdate: 30/08/2020 Architecture: WINDOWS Score: 100 52 www.punucen.com 2->52 54 www.irishtwintravels.com 2->54 62 Multi AV Scanner detection for domain / URL 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->66 68 5 other signatures 2->68 11 DB_ajdi838893noticeArrival.exe 1 2->11         started        signatures3 process4 signatures5 80 Writes to foreign memory regions 11->80 82 Maps a DLL or memory area into another process 11->82 14 RegAsm.exe 11->14         started        17 DB_ajdi838893noticeArrival.exe 11->17         started        process6 signatures7 94 Modifies the context of a thread in another process (thread injection) 14->94 96 Maps a DLL or memory area into another process 14->96 98 Sample uses process hollowing technique 14->98 102 2 other signatures 14->102 19 explorer.exe 2 6 14->19 injected 100 Writes to foreign memory regions 17->100 24 RegAsm.exe 17->24         started        process8 dnsIp9 56 www.redeemmyoffers.com 103.224.182.243, 49728, 80 TRELLIAN-AS-APTrellianPtyLimitedAU Australia 19->56 58 www.yofdyk.com 198.187.30.54, 49729, 49736, 49739 NAMECHEAP-NETUS United States 19->58 60 www.jobs-hiringnow.com 19->60 44 C:\Users\user\AppData\...\svv3f7pmpzh.exe, PE32 19->44 dropped 46 C:\Program Files (x86)\...\svv3f7pmpzh.exe, PE32 19->46 dropped 70 System process connects to network (likely due to code injection or exploit) 19->70 72 Benign windows process drops PE files 19->72 26 help.exe 1 17 19->26         started        30 msiexec.exe 19->30         started        32 svv3f7pmpzh.exe 2 19->32         started        34 2 other processes 19->34 74 Modifies the context of a thread in another process (thread injection) 24->74 76 Maps a DLL or memory area into another process 24->76 78 Sample uses process hollowing technique 24->78 file10 signatures11 process12 file13 48 C:\Users\user\AppData\...\58Rlogrv.ini, data 26->48 dropped 50 C:\Users\user\AppData\...\58Rlogri.ini, data 26->50 dropped 84 Detected FormBook malware 26->84 86 Tries to steal Mail credentials (via file access) 26->86 88 Tries to harvest and steal browser information (history, passwords, etc) 26->88 92 2 other signatures 26->92 36 cmd.exe 1 26->36         started        90 Tries to detect virtualization through RDTSC time measurements 30->90 38 conhost.exe 32->38         started        40 conhost.exe 34->40         started        signatures14 process15 process16 42 conhost.exe 36->42         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/28ebdc57f4de0a5f04d5ac0c8f17996d257df911de9900c3e6db1f1e213383b7/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2020-08-30 15:26:26 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=fdv5yv7u3yff6bgvvqgi6f4znusx36ir32mqbq7g3mpr4ijtqo3q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook persistence
Link:
https://tria.ge/reports/200830-61avmdkbw6/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.yofdyk.com/gtb/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Noon
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/28ebdc57f4de0a5f04d5ac0c8f17996d257df911de9900c3e6db1f1e213383b7

File information

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

973e0499c0b881283b480c84e15d440c

FormBook

Executable exe 28ebdc57f4de0a5f04d5ac0c8f17996d257df911de9900c3e6db1f1e213383b7

(this sample)

  
Dropped by
MD5 973e0499c0b881283b480c84e15d440c
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/53145/

Comments