MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 66a9e85851ace3bf27c98c49e0f80d97f9580c55354a2d413018ec80bbdd4766. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments

SHA256 hash: 66a9e85851ace3bf27c98c49e0f80d97f9580c55354a2d413018ec80bbdd4766
SHA3-384 hash: 37e44fe93cd64dda382a3a8512e6f8a5f2eaf71f466d199c24e0ac5894bdc24979e69da27100cf11626f59cf4c7c980c
SHA1 hash: d5dd39814ca1942dcbe004b78af6705359bf8982
MD5 hash: 21c001d8d02636c510934a2dc6615e81
humanhash: thirteen-oven-venus-alaska
File name:Swift Copy.exe
Download: download sample
Signature Formbook
File size:662'528 bytes
First seen:2022-08-10 10:32:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:i+VaCR8W79o3Djd6RRFf2Q7ukPvKjTAYpsNrSTFMA/vlT8gJT:i+AC76oRnOMyxpN2AHt
TLSH T1F3E4F109CEDE4CE9C5A5F771621395B1CD736838D1D29E21A8AA2D373F21A39E643F01
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
283
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
Swift Copy.exe
Verdict:
Malicious activity
Analysis date:
2022-08-10 10:35:43 UTC
Tags:
formbook trojan stealer

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

Behaviour
Launching a process
Launching cmd.exe command interpreter
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Result
Verdict:
MALICIOUS
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.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
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 harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 681606 Sample: Swift Copy.exe Startdate: 10/08/2022 Architecture: WINDOWS Score: 100 41 www.posinet1.com 2->41 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 Multi AV Scanner detection for dropped file 2->53 55 10 other signatures 2->55 9 Swift Copy.exe 7 2->9         started        signatures3 process4 file5 33 C:\Users\user\AppData\Roaming\KnjzSt.exe, PE32 9->33 dropped 35 C:\Users\user\...\KnjzSt.exe:Zone.Identifier, ASCII 9->35 dropped 37 C:\Users\user\AppData\Local\...\tmp6386.tmp, XML 9->37 dropped 39 C:\Users\user\AppData\...\Swift Copy.exe.log, ASCII 9->39 dropped 61 Writes to foreign memory regions 9->61 63 Adds a directory exclusion to Windows Defender 9->63 65 Injects a PE file into a foreign processes 9->65 13 RegSvcs.exe 9->13         started        16 powershell.exe 23 9->16         started        18 schtasks.exe 1 9->18         started        20 2 other processes 9->20 signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 13->67 69 Maps a DLL or memory area into another process 13->69 71 Sample uses process hollowing technique 13->71 73 Queues an APC in another process (thread injection) 13->73 22 explorer.exe 13->22 injected 26 conhost.exe 16->26         started        28 conhost.exe 18->28         started        process9 dnsIp10 43 mogdento.com 103.92.235.55, 49841, 49842, 80 ZINIOSS-AS-INZiniosInformationTechnologyPvtLtdIN India 22->43 45 kinemartigues.com 51.159.175.169, 49814, 49815, 80 OnlineSASFR France 22->45 47 7 other IPs or domains 22->47 57 System process connects to network (likely due to code injection or exploit) 22->57 59 Performs DNS queries to domains with low reputation 22->59 30 chkdsk.exe 13 22->30         started        signatures11 process12 signatures13 75 Tries to steal Mail credentials (via file / registry access) 30->75 77 Tries to harvest and steal browser information (history, passwords, etc) 30->77 79 Modifies the context of a thread in another process (thread injection) 30->79 81 Maps a DLL or memory area into another process 30->81
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-08-10 09:03:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
22 of 25 (88.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Creates scheduled task(s)
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Unpacked files
SH256 hash:
c60e7031a42930f55fb75595dfdd24a1e5acd099a9dd2f79ec8c9ddc25268239
MD5 hash:
df9967a6bb9f130f78d196a0ffdd2ee0
SHA1 hash:
1dd413bcaac09ac74605f745ae1bb853605220b8
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
3c3ceeea59d4f38db7b503a4b121950babe1d57f491e8fd26563dea834b7910f
MD5 hash:
7a627ccb05a63efeaefcb86b1c7bdcc5
SHA1 hash:
d636c31da9ef132a374c1076c6bd73fff1984d2d
SH256 hash:
18eb60c0eb3e1c610526d9f4b42684ac36a2ebb521514a8770dca2f2afd7f471
MD5 hash:
7ca239778f9f46d28b08876564dba525
SHA1 hash:
973b0d0d98a83b7dfcf1bfce04a179b0f070b98c
SH256 hash:
1986144f8666e84c2b3c59bcf7969f1dc721498b7e20740b63bd36184deef218
MD5 hash:
4c38ce065f432a352abcc45a455f7f1a
SHA1 hash:
64caf4e4483a0ef96c91e4da6734040c9bcb6535
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
SH256 hash:
66a9e85851ace3bf27c98c49e0f80d97f9580c55354a2d413018ec80bbdd4766
MD5 hash:
21c001d8d02636c510934a2dc6615e81
SHA1 hash:
d5dd39814ca1942dcbe004b78af6705359bf8982
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Malspam

Formbook

Executable exe 66a9e85851ace3bf27c98c49e0f80d97f9580c55354a2d413018ec80bbdd4766

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment

Comments