MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81fd7b4c68d09347415a53e0fcf3a7fc3d3277be9fdc9a67e550078a53f4b96d. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81fd7b4c68d09347415a53e0fcf3a7fc3d3277be9fdc9a67e550078a53f4b96d
SHA3-384 hash: 12d6059c6a2396d9910624f74786aff9586548fdd9060751247c403e7a00ac99e819b9485ff14c31e66d3f7d3a9e3faf
SHA1 hash: b40fb63e771cbfce98f5d00efed33aa67a2aad08
MD5 hash: b567701b34cae91c533164d244d0fdc8
humanhash: coffee-yankee-leopard-football
File name:file.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:751'104 bytes
First seen:2020-10-22 08:14:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:2ZsI0BaX60NIqyssKX9djb0/6tHlY5udZ7ZynQ1ROZWx1RRE18ZI3N0rtPLoXXR/:WsI0BC6tA4o1018O3A5LwRwuKBXzAz2
Threatray 2'659 similar samples on MalwareBazaar
TLSH 9EF48C9D726072EFC85BD4729EA81C68FB6064BB831B5213A02715EDDE4D897CF244F2
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: stella.ns1.bg
Sending IP: 79.124.76.95
From: Vlad Alexandru <info@aklcorporation.com>
Subject: Re: Re: cerere de ofertă
Attachment: file.zip (contains "file.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
88
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/74590/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/506909
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected unpacking (changes PE section rights)
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
PE file contains section with special chars
PE file has nameless sections
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 302577 Sample: file.exe Startdate: 22/10/2020 Architecture: WINDOWS Score: 100 46 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Multi AV Scanner detection for dropped file 2->50 52 11 other signatures 2->52 10 file.exe 7 2->10         started        process3 file4 32 C:\Users\user\AppData\...\izPiogsfWsUnC.exe, PE32 10->32 dropped 34 C:\...\izPiogsfWsUnC.exe:Zone.Identifier, ASCII 10->34 dropped 36 C:\Users\user\AppData\Local\...\tmp51E0.tmp, XML 10->36 dropped 38 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 10->38 dropped 62 Detected unpacking (changes PE section rights) 10->62 64 Writes to foreign memory regions 10->64 66 Injects a PE file into a foreign processes 10->66 68 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 10->68 14 RegSvcs.exe 10->14         started        17 schtasks.exe 1 10->17         started        signatures5 process6 signatures7 70 Modifies the context of a thread in another process (thread injection) 14->70 72 Maps a DLL or memory area into another process 14->72 74 Sample uses process hollowing technique 14->74 76 2 other signatures 14->76 19 explorer.exe 14->19 injected 23 conhost.exe 17->23         started        process8 dnsIp9 40 www.michinoeki-taka.com 150.95.48.245, 49745, 80 INTERQGMOInternetIncJP Japan 19->40 42 cmmcwomen.group 34.102.136.180, 49750, 80 GOOGLEUS United States 19->42 44 4 other IPs or domains 19->44 54 System process connects to network (likely due to code injection or exploit) 19->54 25 wlanext.exe 19->25         started        signatures10 process11 signatures12 56 Modifies the context of a thread in another process (thread injection) 25->56 58 Maps a DLL or memory area into another process 25->58 60 Tries to detect virtualization through RDTSC time measurements 25->60 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/81fd7b4c68d09347415a53e0fcf3a7fc3d3277be9fdc9a67e550078a53f4b96d/
Threat name:
Win32.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2020-10-22 07:26:36 UTC
AV detection:
27 of 28 (96.43%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qh6xwtdi2cjuoqk2kpqpz45h7q6te556t7ojuz7fkadyuu7uxfwq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0ba1cd5068eb222e21bf0f4799f531c5dc07849d4920d3410a78b4aef0559ac8
Formbook
306dc076ebd63fe8d969a99984470c480737e86eba1fb55ebe1ef49a8b987565
Formbook
3f1d00cc832bad31567399df69c06c23dbdc989e18178efc599ca6574d190e34
Formbook
5169448790953f95b005aedf779cc9cc9443ab52550650cbae197033d5c227e0
Formbook
7b939c76950b25a4e132860f637b3de9f561022e96481bb5f881b21e57e5898b
Formbook
d0d44ccb48b649e89a18773ccea8337047e57247d29dbedc1abab31f265e7e45
Formbook
d30e5bd3a0ec9e64eea4363751655f0267d7ffb00a9552862179cd8cf6caa6c0
Formbook
e132699f63854eb3c66be165867f2cafc37d29a8a3a4ca3c4c6949ed42ddde95
Formbook
e1e0a4fba3b1dc2e64ac088f5839fe75832cd9a824fd9f0f5e043821d9d18b0c
Formbook
fc6c24e17bd06e27dcc1ac019e4080d4a1a2f10459f74c17b9bb19fb8ba6e442
Formbook
+ 2'649 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/201022-f1qmjds592/
Behaviour
Creates scheduled task(s)
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
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.kumcal.com/fs8/
Unpacked files
SH256 hash:
81fd7b4c68d09347415a53e0fcf3a7fc3d3277be9fdc9a67e550078a53f4b96d
MD5 hash:
b567701b34cae91c533164d244d0fdc8
SHA1 hash:
b40fb63e771cbfce98f5d00efed33aa67a2aad08
Link:
https://www.unpac.me/results/05a33ba4-3ac2-4fff-b9ff-37af6af5f0cb/
SH256 hash:
6e848e925a7922f5e3bc9e5c4060944cc6a6a422f13474a4c2ffad9e349c4c2e
MD5 hash:
1d3a185ce711f3a16438b58b7b0a69d9
SHA1 hash:
674aee8713d302214d1aef12809e9188cd7a86ea
Link:
https://www.unpac.me/results/05a33ba4-3ac2-4fff-b9ff-37af6af5f0cb/
SH256 hash:
e1cb1da388b5bf321a3675ce8b0caed3436c27a8262db5562d86ad462d2c112c
MD5 hash:
62c21b8dbd5588b7a304435afb4a28f6
SHA1 hash:
88f8dcfde5081c1f7116a2c3d93267b5c868d900
Link:
https://www.unpac.me/results/05a33ba4-3ac2-4fff-b9ff-37af6af5f0cb/
SH256 hash:
bac5797bde4b2810766a40d95bcdb825ac5b395fcbadd139daa19a44a6cdc049
MD5 hash:
a92cc1f6e0a2742350dfda6726db14c0
SHA1 hash:
e5404e3ed46498deb8ad8966a774540c2b8e9c1e
Link:
https://www.unpac.me/results/05a33ba4-3ac2-4fff-b9ff-37af6af5f0cb/
SH256 hash:
cb6b0604e17f8ff0f50bf5ad2014f795ce0d8b0b293c7e11f1a44bb7c94dcdc1
MD5 hash:
c97bcbc8758043b5b5b8ed037505c74b
SHA1 hash:
f54cf01236377bdf1f7f6b371e0604fe80b3db91
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/05a33ba4-3ac2-4fff-b9ff-37af6af5f0cb/
Parent samples :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 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.

Malspam

Formbook

zip 0b7c0c7c5acf337bb7d3b1d14867f0e6a94b4cdf71d22f6c299d65b678970205

Formbook

Executable exe 81fd7b4c68d09347415a53e0fcf3a7fc3d3277be9fdc9a67e550078a53f4b96d

(this sample)

  
Dropped by
MD5 e6d7d00684ee04aca83bfcb50dc39c76
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/74590/
  
Dropped by
SHA256 0b7c0c7c5acf337bb7d3b1d14867f0e6a94b4cdf71d22f6c299d65b678970205

Comments