MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6b749b16961bf8b461c0865eaea4869ed9fefb393e2e5c367741b1cb0ce7ff1b. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6b749b16961bf8b461c0865eaea4869ed9fefb393e2e5c367741b1cb0ce7ff1b
SHA3-384 hash: b9a7699f1a800aa26c43e8a7eaf2ef0de06edbf560286101e05630fa7f7e563d47d3007664835d581cb6e3293626380d
SHA1 hash: eb8f077eaffaacb3b00d566830bafbc1202e5cb9
MD5 hash: a2021682e0e7cf78cbb00c9bfba06bc5
humanhash: georgia-johnny-november-fifteen
File name:a2021682e0e7cf78cbb00c9bfba06bc5.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:592'384 bytes
First seen:2020-10-03 10:56:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:/ayA6puCP1XN77uWamNizmpLqkhvPWAGvEJtIeeZ9VA5X:h9J9X57DNi+jhvPW3EJtnO/
Threatray 2'308 similar samples on MalwareBazaar
TLSH D3C4E1447F94F68ECB1B8E3788652D109761A4B7424BF357BDC312FDA54E2B98E042E2
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
217
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/67899/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.412.3621.11684.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/480742
Signature
Antivirus / Scanner detection for submitted sample
Creates an undocumented autostart registry key
Detected FormBook malware
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
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Steal Google chrome login data
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: 292811 Sample: a92KGua3jr.exe Startdate: 03/10/2020 Architecture: WINDOWS Score: 100 41 www.tt9159.com 2->41 43 www.lianxinglvye.com 2->43 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus / Scanner detection for submitted sample 2->53 55 Multi AV Scanner detection for submitted file 2->55 57 6 other signatures 2->57 11 a92KGua3jr.exe 1 2->11         started        signatures3 process4 file5 39 C:\Users\user\AppData\...\a92KGua3jr.exe.log, ASCII 11->39 dropped 71 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 11->71 73 Tries to detect virtualization through RDTSC time measurements 11->73 15 a92KGua3jr.exe 11->15         started        signatures6 process7 signatures8 75 Modifies the context of a thread in another process (thread injection) 15->75 77 Maps a DLL or memory area into another process 15->77 79 Sample uses process hollowing technique 15->79 81 Queues an APC in another process (thread injection) 15->81 18 explorer.exe 15->18 injected process9 dnsIp10 45 www.vcsventures.net 208.91.197.27, 49744, 80 CONFLUENCE-NETWORK-INCVG Virgin Islands (BRITISH) 18->45 47 www.tt9159.com 18->47 49 www.benzbar.com 18->49 59 System process connects to network (likely due to code injection or exploit) 18->59 22 msiexec.exe 1 18 18->22         started        signatures11 process12 file13 35 C:\Users\user\AppData\...\522logrv.ini, data 22->35 dropped 37 C:\Users\user\AppData\...\522logri.ini, data 22->37 dropped 61 Detected FormBook malware 22->61 63 Creates an undocumented autostart registry key 22->63 65 Tries to steal Mail credentials (via file access) 22->65 67 4 other signatures 22->67 26 cmd.exe 2 22->26         started        29 cmd.exe 1 22->29         started        signatures14 process15 signatures16 69 Tries to harvest and steal browser information (history, passwords, etc) 26->69 31 conhost.exe 26->31         started        33 conhost.exe 29->33         started        process17
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6b749b16961bf8b461c0865eaea4869ed9fefb393e2e5c367741b1cb0ce7ff1b/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2020-08-25 13:15:10 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
179043e8eb7c06144c67f58b2c2900ad10303862c0e5cd7e1fe5a4faf853f103
Formbook
1a6c3c9c15d116a1b187ccbb626e017a70fed48ed9b814eb0e998311db058c26
Formbook
1f5f7921e3be739b51bead01306a9cc5dc7fec1dbc01a6784497de89afb6742c
Formbook
45312e8d723fed92808618b75477d50d8511d302886dc7969766b788cc00cbaa
Formbook
50a183b6130552c9a7613ec0f2d81eba5731d4166e92d5249c2ab81e32d4026d
Formbook
5ea463243b051351c219469515fb9b39d01c5c3c4f4698bd6164e36070622d35
Formbook
6b3c0907618cdc1bdcb07dd987ee91dbcc691b2181d947e81d8d2756d7cea195
Formbook
9c0d3c463792d704909de3a04cd7a6d31f8094301e8e24950af31cdc5e9f2838
Formbook
a50b13f838ab5c3a87196d1b8896ad7e1bd4272c948d79bf3d4636ca4f8baba1
Formbook
affce980af02d950f59edeb358f59b8770a2ce6c164bc80bfb096d217b6e9e3d
Formbook
+ 2'298 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat evasion trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/201003-5z2bfcr872/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
Formbook Payload
Looks for VirtualBox Guest Additions in registry
Formbook
Malware Config
C2 Extraction:
http://www.iskovlay.com/kbc/
Unpacked files
SH256 hash:
6b749b16961bf8b461c0865eaea4869ed9fefb393e2e5c367741b1cb0ce7ff1b
MD5 hash:
a2021682e0e7cf78cbb00c9bfba06bc5
SHA1 hash:
eb8f077eaffaacb3b00d566830bafbc1202e5cb9
Link:
https://www.unpac.me/results/4a0f7c95-3585-4ed3-a64c-783167c260b6/
SH256 hash:
9da4aa1abd6fc88e21672dc0c8ba8c30232671cf3d1ebb7ace015e96d5907310
MD5 hash:
ace613ec179ca9c4c8bc8e628a158c26
SHA1 hash:
92b1f9d8b41006a81511c6389d06c309ac4cb413
Link:
https://www.unpac.me/results/4a0f7c95-3585-4ed3-a64c-783167c260b6/
SH256 hash:
9e550ef5ee0613f498580aceb1bcce0672c523cd3642d53e04399235bfe877d1
MD5 hash:
1ab4bbd42197cceee45b07b66e5458e8
SHA1 hash:
deb7207e2d5a11021a57d7f6fe5688df9e2db847
Link:
https://www.unpac.me/results/4a0f7c95-3585-4ed3-a64c-783167c260b6/
SH256 hash:
df15dc0eabccf98d4b9d4416b21bc6ba7a2652889b50d82c038ef482cd08f6c7
MD5 hash:
e51ee27b2fed00d49aeea9d973d4c06d
SHA1 hash:
f8a5d440ad83cb703b192c0709c22ee07045aaa0
Link:
https://www.unpac.me/results/4a0f7c95-3585-4ed3-a64c-783167c260b6/
SH256 hash:
6bc888f91fe029227d450ce22afeaba5d6ba11fcc1c305a6cf3f415646936e77
MD5 hash:
e7924b6a6630a81d59cf775d2d3bae4c
SHA1 hash:
22fc46805a0d1e8d345de8d1c8fd3d8b241d5759
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/4a0f7c95-3585-4ed3-a64c-783167c260b6/
Parent samples :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 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/6b749b16961bf8b461c0865eaea4869ed9fefb393e2e5c367741b1cb0ce7ff1b

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/67899/

Comments