MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5291498ba10bc71f5bb08fe5c67d085c24008589c09c6c28faf4dbf222ef5a3a. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments

SHA256 hash: 5291498ba10bc71f5bb08fe5c67d085c24008589c09c6c28faf4dbf222ef5a3a
SHA3-384 hash: 61582631809853778c5fdf00d253999a457b4af68f4b8801d5b65501df09bae647bc33b5cb5e23c388503d664a4805f7
SHA1 hash: 36f35a2a1a6cc8e190e21f712b4cef7496fe7d0c
MD5 hash: 765b1142db3cb3263df0148b41f16590
humanhash: kitten-jupiter-december-mike
File name:Swift_220523.exe
Download: download sample
Signature Formbook
File size:766'976 bytes
First seen:2023-05-23 07:01:21 UTC
Last seen:2023-05-29 09:54:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:qDX91+IfZ3tT6MKLhK/xe9tIwXl4rXO5p0MrRBfMGtokU5YKISCg:qR1+IfZdTC4ZeQw14SDtDU5Y4
Threatray 3'037 similar samples on MalwareBazaar
TLSH T16DF49D9533B5DF1AD87E43FF06F0908C0BB875067026E2195F9636D67270BA62B48B93
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter TeamDreier
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
4
# of downloads :
251
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
Swift_220523.exe
Verdict:
Malicious activity
Analysis date:
2023-05-23 07:03:14 UTC
Tags:
formbook xloader

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
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin 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.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 873569 Sample: Swift_220523.exe Startdate: 23/05/2023 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic 2->36 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 6 other signatures 2->42 10 Swift_220523.exe 3 2->10         started        process3 file4 28 C:\Users\user\...\Swift_220523.exe.log, ASCII 10->28 dropped 54 Tries to detect virtualization through RDTSC time measurements 10->54 14 Swift_220523.exe 10->14         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 17 explorer.exe 1 1 14->17 injected process8 dnsIp9 30 www.lefinet.com 162.214.129.144, 49698, 80 UNIFIEDLAYER-AS-1US United States 17->30 32 www.humanlongevity.xyz 13.248.169.48, 49699, 80 AMAZON-02US United States 17->32 34 www.amzosecsn-jp.icu 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 46 Performs DNS queries to domains with low reputation 17->46 21 wscript.exe 17->21         started        signatures10 process11 signatures12 48 Modifies the context of a thread in another process (thread injection) 21->48 50 Maps a DLL or memory area into another process 21->50 52 Tries to detect virtualization through RDTSC time measurements 21->52 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-05-22 15:18:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
20 of 36 (55.56%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:cs94 rat spyware stealer trojan
Behaviour
Gathers network information
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
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
792cdea2039afcadb9f76a5f4ac16a948ac7c9ec05431500791961ee8ea30e8e
MD5 hash:
b87bd6a6d7b484764549b446ffe211a6
SHA1 hash:
e7ec51e0c652e9af547a4612640a1beee327f8bf
SH256 hash:
14098701ca153ab230fd0f04b32827c36d9d3df135378f453d7d61d79af723e0
MD5 hash:
e78ea56fc6baf99958df41065cd4cd00
SHA1 hash:
d6228d6094fd80bcf42e939c48ee7da1a8d53cd4
SH256 hash:
4c7ce432433fc3a8b0a33d558e0041d3f1c222224c5e61f33104d990a534c7a4
MD5 hash:
e8d756b4e2de5a67446e0b1b80e1bb99
SHA1 hash:
b664448f87ac044a16706d35e5d76538ba79508a
SH256 hash:
16c255190eaaf1b60ec7d07abcac5f614ea197cee2416ca9d01bb563c526c87d
MD5 hash:
fb4ed205b442f470bbf10913128efdcb
SHA1 hash:
9a0a4c5ae429769e3253a9a3daefa24270b87a5b
SH256 hash:
5291498ba10bc71f5bb08fe5c67d085c24008589c09c6c28faf4dbf222ef5a3a
MD5 hash:
765b1142db3cb3263df0148b41f16590
SHA1 hash:
36f35a2a1a6cc8e190e21f712b4cef7496fe7d0c
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 5291498ba10bc71f5bb08fe5c67d085c24008589c09c6c28faf4dbf222ef5a3a

(this sample)

  
Delivery method
Distributed via e-mail attachment

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