MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cd88f1f0051fb232edba57fff3fc2b789e0b286ec9b938d8f31c3ef52c6848df. 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: cd88f1f0051fb232edba57fff3fc2b789e0b286ec9b938d8f31c3ef52c6848df
SHA3-384 hash: 0f1fd3dac4eea4a1534854d2d78012c772507a98a0bbca80b7cb1297a2453ad19c207c73f7ded054832a55b4ea8a73b9
SHA1 hash: 259e08c891e7a09775c00b7dbb1ecc1c26b7f30b
MD5 hash: 355224f891c99b9d201de25cd4c8b4be
humanhash: thirteen-oklahoma-fifteen-winter
File name:PO_768960.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:837'120 bytes
First seen:2020-08-30 15:39:30 UTC
Last seen:2020-08-30 16:50:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:zdlJ49rA2eJ+K3A9Ggv42R0W0DXNO/nSWWFl7JLETFTMz4XadpWzsrXyhMm8iVOS:MrAT+Kpgv42uWyNO/nwz7JETSsXa7
Threatray 2'248 similar samples on MalwareBazaar
TLSH 89055A493314B39EC807FD7A99541CA8EBB07567DB2BD283DC0711A8A90D59FEF190E2
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: smtpcmd11127.aruba.it
Sending IP: 62.149.156.127
From: Daniele helgi<daniele@e3cube.it>
Subject: RE: Re: Re: PO_768960
Attachment: PO_768960.rar (contains "PO_768960.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
159
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/53141/
Detection(s):
SecuriteInfo.com.CIL.HeapOverride.Heur.17623.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Launching cmd.exe command interpreter
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/454676
Signature
Benign windows process drops PE files
Creates an undocumented autostart registry key
Detected FormBook malware
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 279710 Sample: PO_768960.exe Startdate: 30/08/2020 Architecture: WINDOWS Score: 100 48 www.furi-mold.com 2->48 62 Malicious sample detected (through community Yara rule) 2->62 64 Multi AV Scanner detection for dropped file 2->64 66 Multi AV Scanner detection for submitted file 2->66 68 8 other signatures 2->68 11 PO_768960.exe 3 2->11         started        signatures3 process4 file5 46 C:\Users\user\AppData\...\PO_768960.exe.log, ASCII 11->46 dropped 86 Tries to detect virtualization through RDTSC time measurements 11->86 88 Injects a PE file into a foreign processes 11->88 15 PO_768960.exe 11->15         started        signatures6 process7 signatures8 90 Modifies the context of a thread in another process (thread injection) 15->90 92 Maps a DLL or memory area into another process 15->92 94 Sample uses process hollowing technique 15->94 96 Queues an APC in another process (thread injection) 15->96 18 explorer.exe 6 15->18 injected process9 dnsIp10 50 www.yuanky.net 164.155.61.68, 49727, 80 SANRENDATALIMITED-AS-APSANRENDATALIMITEDHK South Africa 18->50 52 www.fullstackmap.com 18->52 54 www.brian-thoraval.com 18->54 38 C:\Users\user\AppData\...\nr44ul4xjfidyx.exe, PE32 18->38 dropped 40 C:\Program Files (x86)\...\nr44ul4xjfidyx.exe, PE32 18->40 dropped 70 System process connects to network (likely due to code injection or exploit) 18->70 72 Benign windows process drops PE files 18->72 23 mstsc.exe 1 17 18->23         started        27 nr44ul4xjfidyx.exe 3 18->27         started        29 raserver.exe 18->29         started        file11 signatures12 process13 file14 42 C:\Users\user\AppData\...\O6-logrv.ini, data 23->42 dropped 44 C:\Users\user\AppData\...\O6-logri.ini, data 23->44 dropped 74 Detected FormBook malware 23->74 76 Creates an undocumented autostart registry key 23->76 78 Tries to steal Mail credentials (via file access) 23->78 84 3 other signatures 23->84 31 cmd.exe 1 23->31         started        80 Injects a PE file into a foreign processes 27->80 33 nr44ul4xjfidyx.exe 27->33         started        82 Tries to detect virtualization through RDTSC time measurements 29->82 signatures15 process16 signatures17 36 conhost.exe 31->36         started        56 Modifies the context of a thread in another process (thread injection) 33->56 58 Maps a DLL or memory area into another process 33->58 60 Sample uses process hollowing technique 33->60 process18
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/cd88f1f0051fb232edba57fff3fc2b789e0b286ec9b938d8f31c3ef52c6848df/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-30 14:36:21 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zwepd4afd6zdf3n2k777h7blpcpawkdozg4trwhtdq7pkldijdpq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
22d5036d18a7dbaf7a67487165b4bca434220d5d066ba9f74bc1ad20eb37290a
FormBook
27faaaca4acb955010d7b8c16764a536c04149f2d332f99668d6ff6f292bfc20
FormBook
3374d3d11eef1e8fc48019fccac4fb5475ce8fec60c5e019c64662723fd5c1b3
FormBook
4b83753be005d3668592559d6fe011fda590558f730140f6c303714ac8fe0d93
FormBook
52b517b0e9be1efed3349ff5b7e7e4a392881437d7bc9ccd7b94bbc23e28a2f9
FormBook
538026aea095085f7a8cd260a783b5495592a90ed7df928d6db87b7e2a3b8675
FormBook
9a3f18b05ce5e0ad884dc95af226f584d483a91dd15cb895a0cce8b91fb2b314
FormBook
b24a5df4c63722afbed1e3807b18fcc065008ec3431de146dbf3657dffa00893
FormBook
f01e05ea7a73c604ae68acbced809fa9a249818994aae64af13010b3ea82c892
FormBook
fc714509dc4c3d6f3e13028be7be8207b2377331266c8ce213c575e511f8d31f
FormBook
+ 2'238 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/200830-8mnzsa7g52/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.mansiobok.info/hx119/
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/cd88f1f0051fb232edba57fff3fc2b789e0b286ec9b938d8f31c3ef52c6848df

File information

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

Malspam

FormBook

rar d03f3b404e36c5f14198166d3e55e3d45885f9c289181c0074be319bc5cbb443

FormBook

Executable exe cd88f1f0051fb232edba57fff3fc2b789e0b286ec9b938d8f31c3ef52c6848df

(this sample)

  
Dropped by
MD5 083e2054033818ff94c2c17bb089610f
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 d03f3b404e36c5f14198166d3e55e3d45885f9c289181c0074be319bc5cbb443
Cape
Cape
https://www.capesandbox.com/analysis/53141/

Comments