MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5827618e631faa0da77858e8849358e5f1e811c62986700aa1f33cf4e26ce516. 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: 5827618e631faa0da77858e8849358e5f1e811c62986700aa1f33cf4e26ce516
SHA3-384 hash: 29a4fb761e4fc5b23fc7ab503fabf23c042ee4eb328521266ee811df8b449a6a92e77dc5ed8d282a663790f5bea896aa
SHA1 hash: 3a8f385ee74e556ef099e53393c2ad08faa94b52
MD5 hash: cc220989bd9311e494f9b7830e95ff5a
humanhash: football-sierra-bulldog-uniform
File name:order.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'098'240 bytes
First seen:2020-12-17 08:31:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:jQfInbryAnt5RdDcuFXJUpLfJe72CyCWslmy/jT+D9lp5g0LyXEZyyYh+iJO+Jq/:sfeNWzsX0YHO+Ym9TbC/G/vG
Threatray 3'192 similar samples on MalwareBazaar
TLSH CB358D2436EA6719F037EFB956E47045CBFAB623B716D4497C9102CB0622F40DE91B3A
Reporter abuse_ch
Tags:exe FormBook geo KOR


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: mail-smail-vm45.hanmail.net
Sending IP: 203.133.180.233
From: 이상훈 배상 <leesy3581@hanmail.net>
Subject: 요청자료목록
Attachment: 요청자료목록.cab (contains "order.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
111
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Setting browser functions hooks
Forced shutdown of a system process
Enabling autorun by creating a file
Unauthorized injection to a system process
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/565097
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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)
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
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 331636 Sample: order.exe Startdate: 17/12/2020 Architecture: WINDOWS Score: 100 37 Malicious sample detected (through community Yara rule) 2->37 39 Multi AV Scanner detection for dropped file 2->39 41 Sigma detected: Scheduled temp file as task from temp location 2->41 43 10 other signatures 2->43 9 order.exe 7 2->9         started        process3 file4 29 C:\Users\user\AppData\...29GRhToUAYudTI.exe, PE32 9->29 dropped 31 C:\...31GRhToUAYudTI.exe:Zone.Identifier, ASCII 9->31 dropped 33 C:\Users\user\AppData\Local\Temp\tmp587.tmp, XML 9->33 dropped 35 C:\Users\user\AppData\Local\...\order.exe.log, ASCII 9->35 dropped 47 Tries to detect virtualization through RDTSC time measurements 9->47 49 Injects a PE file into a foreign processes 9->49 13 order.exe 9->13         started        16 schtasks.exe 1 9->16         started        18 order.exe 9->18         started        signatures5 process6 signatures7 51 Modifies the context of a thread in another process (thread injection) 13->51 53 Maps a DLL or memory area into another process 13->53 55 Sample uses process hollowing technique 13->55 57 Queues an APC in another process (thread injection) 13->57 20 explorer.exe 13->20 injected 22 conhost.exe 16->22         started        process8 process9 24 cmstp.exe 20->24         started        signatures10 45 Tries to detect virtualization through RDTSC time measurements 24->45 27 cmd.exe 24->27         started        process11
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5827618e631faa0da77858e8849358e5f1e811c62986700aa1f33cf4e26ce516/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-12-17 03:16:16 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=latwddtdd6va3j3ylduije2y4xy6qeogfgdhacvb6m6pjytm4ula._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1d6b4c596e189a78ffd872bffe908aaf27f74f6c36dddfd50b517f9155c0938b
Formbook
1fc8a3262a1c12fd2ec5ffded3e5b8f83a14ebcbb1313e73900534ae42cc1ef8
Formbook
51fc4c13e2fa607113d821aaab2ba2e96d10097d69698ec3facc71b8b751e068
Formbook
52a6c71e63ed3857be2fa0fb314ce631820994fb7e852fb66bca923efbee2380
Formbook
787e10aed324cae24ab5136f95deb95efe8715a6bd7ced09028b2ee21d228a5e
Formbook
8bb7375d1d8c2236d2a43e413209831ab50f8599eabdc906143ba7742425fb0c
Formbook
93094c96cb315b7457fcdc289cdbdf47876c98c1103bba45726bd1018e40cc30
Formbook
93a0f97c3198a1ba4fafeb2c5fd7bd44f425cc5c9ad126880128d1ec22cc22ec
Formbook
a4cb0f9cc73c9dda17e2c27e0c35cec8b5f58d08910f4ad237814f8f3a9b3723
Formbook
eecabbdec29294f055c109660c94db3de0ce9187461ea6f18639cf9c34883e70
Formbook
+ 3'182 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/201217-qs77kmkczn/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.midnightblueinc.com/2kf/
Unpacked files
SH256 hash:
5827618e631faa0da77858e8849358e5f1e811c62986700aa1f33cf4e26ce516
MD5 hash:
cc220989bd9311e494f9b7830e95ff5a
SHA1 hash:
3a8f385ee74e556ef099e53393c2ad08faa94b52
Link:
https://www.unpac.me/results/e93edfbd-fd03-4fa8-b998-cc0df23ce4e4/
SH256 hash:
55abf08a6a6ab7c7848a2bc0410d84befe6dcfa118336e2e4f1ee456a8009efc
MD5 hash:
6ce9761c3c3ae715d40a77b982d31dc9
SHA1 hash:
42a5a02eabe7d80d79408549e7686d4e44524361
Link:
https://www.unpac.me/results/e93edfbd-fd03-4fa8-b998-cc0df23ce4e4/
SH256 hash:
ea244aeaf8593e25c04cad0752690323fc2fe275754591e65780adbc3d39f8a2
MD5 hash:
eeb591be24fb7542b3e19996db4d4761
SHA1 hash:
6dcd637ae9ff94164b436b14e56d5f900f9604ac
Link:
https://www.unpac.me/results/e93edfbd-fd03-4fa8-b998-cc0df23ce4e4/
SH256 hash:
282ebc0e4c2d74af414c8736027e6cab3c79cba1b3e8bed9b69fd492504c85ea
MD5 hash:
97d092abb8f5174ed72aad78cb83239c
SHA1 hash:
d7a1ca0683b0d6dc9d505c580f9c50d567a93951
Link:
https://www.unpac.me/results/e93edfbd-fd03-4fa8-b998-cc0df23ce4e4/
SH256 hash:
f97565ec848cbd571e1e4702f7007a932b65ef1d9709a2f51b196381bbd74733
MD5 hash:
1c39769851bf066784c416a68cb32f2d
SHA1 hash:
7dc878633ddf8763f4ccf356f67a27fae908d227
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/e93edfbd-fd03-4fa8-b998-cc0df23ce4e4/
Parent samples :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 note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/5827618e631faa0da77858e8849358e5f1e811c62986700aa1f33cf4e26ce516

File information

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

Malspam

Formbook

cab beed103bd255f4c6825adfb41d6a7fb1a1d8de6f76a0b26430d317a1cf4de2a0

Formbook

Executable exe 5827618e631faa0da77858e8849358e5f1e811c62986700aa1f33cf4e26ce516

(this sample)

  
Dropped by
MD5 b234acaec6d94afb5f694b73f69c4465
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 beed103bd255f4c6825adfb41d6a7fb1a1d8de6f76a0b26430d317a1cf4de2a0

Comments