MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5bd7c2f7e12df0ef8aca5ee5b491c5fb5041a2ae05e60022ecbb4c4f41765657. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5bd7c2f7e12df0ef8aca5ee5b491c5fb5041a2ae05e60022ecbb4c4f41765657
SHA3-384 hash: 31a9e82fa779e4612899e59fdd6b7c23dfd7b5c6717ae40babfa3e6619b6b9a4bbdf053740e01dd5fd325fc1b37a4e4a
SHA1 hash: a44697ffcb7c954a626eb1eba5c5e878626f7113
MD5 hash: 656c7d3ebfbda0f059b3d4d87fe1eb01
humanhash: jig-timing-tennis-illinois
File name:officeorning.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:470'528 bytes
First seen:2020-10-25 13:27:55 UTC
Last seen:2020-10-25 15:41:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:gdw/z24UN2687P7aNVvZeikELMHR7iyf03UXmQOu:gOa4467GNZeikAyf3Ou
Threatray 354 similar samples on MalwareBazaar
TLSH 4AA4B0B27D92587ECB6B0775517985C1FAB622C73FA08F0D716B430C0E11A6BAB1325B
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
89
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/75708/
Detection(s):
SecuriteInfo.com.Variant.Bulz.151977.19562.21393.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Sending a UDP request
Creating a window
Creating a file
Creating a process from a recently created file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/509525
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Allocates memory in foreign processes
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
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 303879 Sample: officeorning.exe Startdate: 25/10/2020 Architecture: WINDOWS Score: 100 32 Malicious sample detected (through community Yara rule) 2->32 34 Multi AV Scanner detection for submitted file 2->34 36 Yara detected FormBook 2->36 38 4 other signatures 2->38 10 officeorning.exe 8 2->10         started        process3 file4 26 C:\Users\user\AppData\...\AgileDotNetRT.dll, PE32 10->26 dropped 28 C:\Users\user\AppData\...\AgileDotNetRT.dll, PE32 10->28 dropped 30 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 10->30 dropped 46 Writes to foreign memory regions 10->46 48 Allocates memory in foreign processes 10->48 50 Tries to detect virtualization through RDTSC time measurements 10->50 52 Injects a PE file into a foreign processes 10->52 14 AddInProcess32.exe 10->14         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 14->54 56 Maps a DLL or memory area into another process 14->56 58 Sample uses process hollowing technique 14->58 60 2 other signatures 14->60 17 explorer.exe 14->17 injected process8 process9 19 wlanext.exe 17->19         started        signatures10 40 Modifies the context of a thread in another process (thread injection) 19->40 42 Maps a DLL or memory area into another process 19->42 44 Tries to detect virtualization through RDTSC time measurements 19->44 22 cmd.exe 1 19->22         started        process11 process12 24 conhost.exe 22->24         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5bd7c2f7e12df0ef8aca5ee5b491c5fb5041a2ae05e60022ecbb4c4f41765657/
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2020-10-25 13:27:40 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Verdict:
unknown
Similar samples:
015f0cf04ffdca8141fd57bc67848a21dc11ab2fda0a91627f6deddcde2c0ca9
Formbook
1c8686106ff3eebb3b99082e117bf8b3bcf5a54b733c2a5eb8ede2b89ee7c4fb
Formbook
3eff0b006dd228c5e1a053f73aea5ca950681ca899f4428771a94300d8844c72
Formbook
6159db0d7f1b3c55dcc878bbf2897c45db669799602bb6761b5882f8baa53535
Formbook
73f6286bd85316cb72796f461e1ad724b8434837f1a10a4a625862c3a7e3c173
Formbook
8758f458706398482da8fd640966abb634405b6f580802ac83077117a9fc64e1
Formbook
8c6c41d8e0f478b1be11b938bf83066e8cf7a8b294c18c91e0b2570f464bc6d2
Formbook
91de70857ce9dbf596a67b2abad7552a467fcc2a155d349799261fb8585e6c18
Formbook
e3d729ca42f1fccc448853dfd71bdd9e95b7427467a1cbda56326d17cc44f922
Formbook
f4e60792b136f02c28fd35322ee58bf723aeaa3611d286417d8b2b0707612cdc
Formbook
+ 344 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/201025-2cmgqy125n/
Behaviour
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 SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.lavishlynelle.com/acq/
Unpacked files
SH256 hash:
5bd7c2f7e12df0ef8aca5ee5b491c5fb5041a2ae05e60022ecbb4c4f41765657
MD5 hash:
656c7d3ebfbda0f059b3d4d87fe1eb01
SHA1 hash:
a44697ffcb7c954a626eb1eba5c5e878626f7113
Link:
https://www.unpac.me/results/526bafb4-9db2-4a9e-8fe5-bedb80d75177/
SH256 hash:
19d9922060be89a70b76e5c0056e751f1baa5d41819235c92cf4f5d7668e1267
MD5 hash:
811864a0b06c529af894a7fec6ddbf47
SHA1 hash:
d35b82933eb06a6ec60e8cbbdb65eb6cdcaeb6d2
Link:
https://www.unpac.me/results/526bafb4-9db2-4a9e-8fe5-bedb80d75177/
Parent samples :
afa2f55e149097f9b250142bbfd94d9d56d10649c96adb079fdb0dfdac7c6660
69e2ae11e1b5cbe120bf02301191a1cf05e87fc09b09d63bd782abbf3615d05d
0b778873c94f6bc89a40294c0e85a38ab82509260cd2a2e8b73d00c5c90e8757
7ddfa6f44a60f4b894321f6977f8121cfb371c3c61ac872c58ba61fd5ee13deb
SH256 hash:
f8bee4108a324df32ad5a2ebafa6b7f411402a21e2598cf9db66486970f80fdd
MD5 hash:
a92da98ff6f5ae608503d074617bcc2a
SHA1 hash:
d3eafcccca011bb3a7a5ae52dd9704ceafcde472
Link:
https://www.unpac.me/results/526bafb4-9db2-4a9e-8fe5-bedb80d75177/
SH256 hash:
9705f6856a88e616cfd1885bdf2d4938db2abe04d78377bc892f8537a0b98559
MD5 hash:
b05e7b532443fc8b72d8315594f5135a
SHA1 hash:
e01dbdf3547d0348fb6cca031cd1df8a41964485
Link:
https://www.unpac.me/results/526bafb4-9db2-4a9e-8fe5-bedb80d75177/
SH256 hash:
24bee1f74fe9698489a4abb19edf849427b78710a6158415006ae3dae0bff1ae
MD5 hash:
aacd636be031c085c53c837b4568d82a
SHA1 hash:
e602cdd481bcc97c212a8f2d69096beff1f177a4
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/526bafb4-9db2-4a9e-8fe5-bedb80d75177/
Parent samples :
5bd7c2f7e12df0ef8aca5ee5b491c5fb5041a2ae05e60022ecbb4c4f41765657
de58e1d7b0e5c521b19573877574ec166cafcae7150b77fb87f7865de7f79912
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/5bd7c2f7e12df0ef8aca5ee5b491c5fb5041a2ae05e60022ecbb4c4f41765657

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:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_formbook_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/75708/

Comments