MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 319795a056019b583b556b445052ec4c33446a75b7310af85bf15be00b2cf94e. 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

SHA256 hash: 319795a056019b583b556b445052ec4c33446a75b7310af85bf15be00b2cf94e
SHA3-384 hash: 16a71c809f71394dd7d51dc9abe56afb80922ba277115060086bfcd2e164bcab71debfdeddfd9dbb5c7c66e4b2c1b7f2
SHA1 hash: 46d93a99be0ef741491eb5296db51392b8969c1e
MD5 hash: b79ae22dd31df631b8127827861836e3
humanhash: april-twenty-burger-maine
File name:b79ae22dd31df631b8127827861836e3.exe
Download: download sample
Signature Formbook
File size:924'672 bytes
First seen:2020-12-15 07:50:17 UTC
Last seen:2020-12-15 09:47:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:U5Zfx7nmmvDSkQzyPomZIixm5ibdHNXNX7XyPaamwZmUApso6nFe4zxGPb:U5Zfx7nmmvDSkQzyPomZIixm5ibdHhNa
Threatray 5'154 similar samples on MalwareBazaar
TLSH 4B154AAD725072DFC857C976CA681C64EAA0747B830BD247A06316ECEE0D997DF250F2
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
158
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b79ae22dd31df631b8127827861836e3.exe
Verdict:
Suspicious activity
Analysis date:
2020-12-15 07:50:44 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Verdict:
SUSPICIOUS
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
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
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)
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
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 330641 Sample: 28zrX5JJmg.exe Startdate: 15/12/2020 Architecture: WINDOWS Score: 100 38 Malicious sample detected (through community Yara rule) 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 Yara detected AntiVM_3 2->42 44 3 other signatures 2->44 10 28zrX5JJmg.exe 3 2->10         started        process3 file4 30 C:\Users\user\AppData\...\28zrX5JJmg.exe.log, ASCII 10->30 dropped 54 Detected unpacking (changes PE section rights) 10->54 56 Detected unpacking (overwrites its own PE header) 10->56 58 Tries to detect virtualization through RDTSC time measurements 10->58 60 Injects a PE file into a foreign processes 10->60 14 28zrX5JJmg.exe 10->14         started        17 28zrX5JJmg.exe 10->17         started        signatures5 process6 signatures7 62 Modifies the context of a thread in another process (thread injection) 14->62 64 Maps a DLL or memory area into another process 14->64 66 Sample uses process hollowing technique 14->66 68 Queues an APC in another process (thread injection) 14->68 19 explorer.exe 14->19 injected process8 dnsIp9 32 illfingers.com 162.241.217.138, 49749, 49775, 80 UNIFIEDLAYER-AS-1US United States 19->32 34 primajayaintiperkasa.com 103.253.212.114, 49732, 49757, 80 RUMAHWEB-AS-IDRumahwebIndonesiaCVID Indonesia 19->34 36 23 other IPs or domains 19->36 46 System process connects to network (likely due to code injection or exploit) 19->46 23 mstsc.exe 19->23         started        signatures10 process11 signatures12 48 Modifies the context of a thread in another process (thread injection) 23->48 50 Maps a DLL or memory area into another process 23->50 52 Tries to detect virtualization through RDTSC time measurements 23->52 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Status:
Malicious
First seen:
2020-12-15 07:51:06 UTC
AV detection:
17 of 28 (60.71%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:formbook family:xloader loader rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Formbook
Xloader
Malware Config
C2 Extraction:
http://www.rizrvd.com/bw82/
Unpacked files
SH256 hash:
319795a056019b583b556b445052ec4c33446a75b7310af85bf15be00b2cf94e
MD5 hash:
b79ae22dd31df631b8127827861836e3
SHA1 hash:
46d93a99be0ef741491eb5296db51392b8969c1e
SH256 hash:
9584f6d01e6452371cc9b4828030a13045d99c243c497b63628828e66aabe26f
MD5 hash:
7476e403eef14ac403c63c7279831780
SHA1 hash:
8387f558e30dc115987ac2b5c174a41302471abf
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.

Web download

Formbook

Executable exe 319795a056019b583b556b445052ec4c33446a75b7310af85bf15be00b2cf94e

(this sample)

  
Delivery method
Distributed via web download

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