MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d97aa63a43e409e490adc5b21a08313841565a76215278c37bcb411828a0a822. 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: 8


Intelligence 8 IOCs YARA File information Comments

SHA256 hash: d97aa63a43e409e490adc5b21a08313841565a76215278c37bcb411828a0a822
SHA3-384 hash: b58d6babc5603a1377e6feb64968a338440bfa54e59263e13de784efad671c8ace8e444b9f97ea8dae3bc4ee02ab1c1f
SHA1 hash: 0632ad7782b8c6f221b49e34a2432d1522c02ef3
MD5 hash: 11f7a998f6a23761c4d22fcc491579f0
humanhash: lake-fruit-whiskey-venus
File name:Invoice_876.exe
Download: download sample
Signature Formbook
File size:470'528 bytes
First seen:2020-11-04 18:33:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:XllRX31Ufei13SYtn2+/29Qed+z1OCQ5AW39Lp450VNGg4jdbp7:TcfeiL1/29+z1rW39O50HGB
Threatray 3'200 similar samples on MalwareBazaar
TLSH A2A46CB9E9A1596DC95A027700654082B6761FC77F6C8A1D31BAB30C0E327DFA713E4B
Reporter James_inthe_box
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
113
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Launching a process
Creating a file in the %AppData% subdirectories
Reading critical registry keys
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
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
Detected FormBook malware
Executable has a suspicious name (potential lure to open the executable)
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Steal Google chrome login data
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 FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 309459 Sample: Invoice_876.exe Startdate: 05/11/2020 Architecture: WINDOWS Score: 100 48 Malicious sample detected (through community Yara rule) 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 Sigma detected: Steal Google chrome login data 2->52 54 6 other signatures 2->54 10 Invoice_876.exe 6 2->10         started        process3 file4 36 C:\Users\user\AppData\Local\...\ngentask.exe, PE32 10->36 dropped 38 C:\Users\user\AppData\...\Invoice_876.exe.log, ASCII 10->38 dropped 40 C:\Users\user\AppData\...\AgileDotNetRT.dll, PE32 10->40 dropped 66 Tries to detect virtualization through RDTSC time measurements 10->66 14 ngentask.exe 10->14         started        signatures5 process6 signatures7 68 Modifies the context of a thread in another process (thread injection) 14->68 70 Maps a DLL or memory area into another process 14->70 72 Sample uses process hollowing technique 14->72 74 2 other signatures 14->74 17 explorer.exe 14->17 injected process8 dnsIp9 42 www.twostage.world 17->42 44 waws-prod-sn1-115.sip.azurewebsites.windows.net 17->44 46 bworldwebstage1.azurewebsites.net 17->46 20 explorer.exe 18 17->20         started        process10 file11 30 C:\Users\user\AppData\...\18Alogrv.ini, data 20->30 dropped 32 C:\Users\user\AppData\...\18Alogri.ini, data 20->32 dropped 56 Detected FormBook malware 20->56 58 Tries to steal Mail credentials (via file access) 20->58 60 Tries to harvest and steal browser information (history, passwords, etc) 20->60 62 3 other signatures 20->62 24 cmd.exe 2 20->24         started        signatures12 process13 file14 34 C:\Users\user\AppData\Local\Temp\DB1, SQLite 24->34 dropped 64 Tries to harvest and steal browser information (history, passwords, etc) 24->64 28 conhost.exe 24->28         started        signatures15 process16
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Status:
Malicious
First seen:
2020-11-04 10:56:01 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Modifies Internet Explorer settings
Suspicious behavior: MapViewOfSection
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.ir4e.com/xbt/
Unpacked files
SH256 hash:
d97aa63a43e409e490adc5b21a08313841565a76215278c37bcb411828a0a822
MD5 hash:
11f7a998f6a23761c4d22fcc491579f0
SHA1 hash:
0632ad7782b8c6f221b49e34a2432d1522c02ef3
SH256 hash:
f8bee4108a324df32ad5a2ebafa6b7f411402a21e2598cf9db66486970f80fdd
MD5 hash:
a92da98ff6f5ae608503d074617bcc2a
SHA1 hash:
d3eafcccca011bb3a7a5ae52dd9704ceafcde472
SH256 hash:
40f7bada1d463d351f0e68cf36e9ea3f34b62f7a54c2d17532d4ad7e09b18260
MD5 hash:
d3dc1d984d620808f8ea4639da63a98a
SHA1 hash:
06c500a9b8118e48e2e6767a50340d077c6651ef
SH256 hash:
29678f248ed97a6dbc2c8a3203403893dab210427b68d422db46acdeea94a4e9
MD5 hash:
22318ef4ebca401fb873e636d099371d
SHA1 hash:
182d4f4bbd223ff91cbe97e2eb35cdb86ac89e2a
SH256 hash:
7519e8bba5fd7a2516d9887fc5804594aeb55fcdc8a83a9f3c5a1fb9c14a23d3
MD5 hash:
de2dd76c672d2118d9182f4a504794f6
SHA1 hash:
2d045ed20e0308d351ff6c61e868cd30a3e75c30
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
a4f3ccf41b85066adc62bc49963533e30186d695bc5b8a568798dd097307da85
MD5 hash:
55d209dc512a661054f483ae787cf5fb
SHA1 hash:
58b276dabf03c40f38882bc523fae46c4542889f
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

  
Delivery method
Other

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