MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 49c63fe83f7e41b112637d582cd180214acf60babf4cdd13a2629f9de3874fec. 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: 17


Intelligence 17 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 49c63fe83f7e41b112637d582cd180214acf60babf4cdd13a2629f9de3874fec
SHA3-384 hash: f93e72354f2ac543cfa9188db4f21d936ab7db55e00e698d21d2e8b3523ca190e35e5c9d529007763bbb147cc3ee3398
SHA1 hash: 5836fd8d701f59bf2341aa3f7a6683293386dc0f
MD5 hash: 57d7d998cbe24cebed375c065b462f88
humanhash: utah-arizona-illinois-angel
File name:file
Download: download sample
Signature Formbook
Create hunting rule
File size:309'296 bytes
First seen:2023-04-04 11:13:37 UTC
Last seen:2023-04-04 11:36:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:/Ya6ZlirrLbbi4Giv1nwJMn84y0TvbnVuMRoTX8WOaD/NGWb7YPkxVog/A9i:/Yz4/RGi9nwg8b8gDNX30kxX
Threatray 2'558 similar samples on MalwareBazaar
TLSH T12C64129412ADD116C4A31F320C7A65327BF8D02B68B6E7AB239056AD7C55183892F3F7
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter jstrosch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
245
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-04-04 11:18:30 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/036d08a2-caf5-4cff-beb9-2ab31771a858

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/379975/
Detection(s):
SecuriteInfo.com.Gen.Variant.Fragtor.246784.7625.5112.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
Searching for synchronization primitives
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a recently created process
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/76480/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
comodo nemesis overlay packed remcos shell32.dll
Link:
https://www.filescan.io/uploads/642c06802f938d3b4e05fb30/reports/bc5a2dcc-2e1d-4203-baae-a6e8d7f1abdf/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/49c63fe83f7e41b112637d582cd180214acf60babf4cdd13a2629f9de3874fec
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b16e7a48-6c34-4478-9dcd-eeb5044945bb
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
evad.rans.troj.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1207981
Signature
Antivirus detection for URL or domain
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found potential ransomware demand text
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 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
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 840899 Sample: file.exe Startdate: 04/04/2023 Architecture: WINDOWS Score: 100 34 www.younrock.com 2->34 36 www.white-hat.uk 2->36 38 24 other IPs or domains 2->38 56 Snort IDS alert for network traffic 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Antivirus detection for URL or domain 2->60 62 5 other signatures 2->62 11 file.exe 19 2->11         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\...\zmpzeol.exe, PE32 11->32 dropped 14 zmpzeol.exe 11->14         started        process6 signatures7 74 Multi AV Scanner detection for dropped file 14->74 76 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->76 78 Maps a DLL or memory area into another process 14->78 17 zmpzeol.exe 14->17         started        process8 signatures9 48 Modifies the context of a thread in another process (thread injection) 17->48 50 Maps a DLL or memory area into another process 17->50 52 Sample uses process hollowing technique 17->52 54 Queues an APC in another process (thread injection) 17->54 20 RAVCpl64.exe 17->20 injected process10 process11 22 rundll32.exe 13 20->22         started        dnsIp12 40 45.56.79.23, 49846, 49910, 49927 LINODE-APLinodeLLCUS United States 22->40 64 System process connects to network (likely due to code injection or exploit) 22->64 66 Tries to steal Mail credentials (via file / registry access) 22->66 68 Tries to harvest and steal browser information (history, passwords, etc) 22->68 70 4 other signatures 22->70 26 explorer.exe 3 1 22->26 injected 30 firefox.exe 22->30         started        signatures13 process14 dnsIp15 42 un-object.com 192.185.17.12, 49856, 49857, 49858 UNIFIEDLAYER-AS-1US United States 26->42 44 www.222ambking.org 91.195.240.94, 49829, 49830, 49831 SEDO-ASDE Germany 26->44 46 16 other IPs or domains 26->46 72 System process connects to network (likely due to code injection or exploit) 26->72 signatures16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/49c63fe83f7e41b112637d582cd180214acf60babf4cdd13a2629f9de3874fec/
Threat name:
Win32.Trojan.Casdet
Create hunting rule
Status:
Malicious
First seen:
2023-04-04 11:14:10 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jhdd72b7pza3cetdpvmczumaeffm6yf2x5gn2e5cmkpz3y4hj7wa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
04bc25b64fef7a482500b3ca966e2d08ee2ba45b4493db70cb24e66eea965f43
Formbook
0b4d4ab86573d05f38f7d2fe83635c75da4462eacadd1859f00bdbdc3809f6fe
Formbook
99c70511abddfe39ccaea3fd4cafb9bc382ebdf0bd8b9a9c8f18a178ef63e664
Formbook
aeb52b6f9b9f7b458048aa0eba6255840d1a90f4309f18c95acc0f3f4b972df3
Formbook
d341b6fe8642df50756dfc1fd18bf37e605718a7b6c2944d117b3a8bf13b4650
Formbook
ebce15ad53b98d7aba7f7544ee947e88f58d696e22ca4bc5d15b2ded37b577ac
Formbook
+ 2'548 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230404-nb1eraee44/
Behaviour
Enumerates system info in registry
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
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
e36372186eecde198f00b7f8c03de639d3c140c72fb92125aac96a916c6d80fb
MD5 hash:
dda34f0fa94e644b7a5d668cc280e7a3
SHA1 hash:
6ea3c9d56032544c49bbe677abadc2d7bea801b1
Link:
https://www.unpac.me/results/fca42721-d09f-4c7d-9d68-fa0cd0fb4d7b/
SH256 hash:
78a2b4466fbc186b8de6423771ab90dffa1566a2135ca9741d94526387570f15
MD5 hash:
26e7995333278eda4c3a54e570d09ba4
SHA1 hash:
5967ffee8562982633e3d4a9f8696853b298a1d0
Detections:
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/fca42721-d09f-4c7d-9d68-fa0cd0fb4d7b/
Parent samples :
e62c1e809c48e66104c34ae3e977b82fbea2e984dee708bda431b608c2774c28
052b6162527da70a384bfa5712e60c065c4d449cc70b6619ec2a50c0a92e2493
1a5f6d761050ca929b99fc66e7c4b57f321421a7372dc752d8000e79bb920ca0
dc2f8a85b52e8562ada16c2ee6cda9770a3c010f894901844d0104476bae67b3
987f477e626f57c4ba440be3016995b5b9d7365a422c0a1d9be524e4993def8a
2333130311b7b060f360196c5629af0ca1919366d2de939c067e0396602d0acb
961fefeda3155a237a5cb947701f9b2baaab58b4ed675098c7809984950803c7
0b4d4ab86573d05f38f7d2fe83635c75da4462eacadd1859f00bdbdc3809f6fe
49c63fe83f7e41b112637d582cd180214acf60babf4cdd13a2629f9de3874fec
3ab1320757d68dbf0e5eb5d31cf81247952c244bbfbda9466cd83d112efc2c72
d546617fa87ea382d7d36b61fa9a69e447bcc69f9bb366f52f3c1df3ebf9254f
039e36a97d5fbc019edd6f7a69d2f89bc8ba24c73c08268831274fe58fa7dbfa
426c06ac810480970dbbd6cbfa2a6e9880ff50b35fd4576986400acce4af949f
00d3d0c49343dba533737e4a17cf453697aa569b00d07deb2cd7688c66d88ada
fe769c40bdc4ba83422c97df176374bb3846f4cc941ecbbfb47383321dfabdca
7517367b3b61170bb7637de6f89077069159c4a04f430c28102e2d7cf5a0343a
89fd567270112eb3494cd4253f2babe024465e60fb28c64800901ccdb3d7fdd2
2f06963075874a8b1b409c7d9fb443c4fffe7d8936936d49f00c0c5d1b71590c
SH256 hash:
40ea7cf4c05d300bcddf8c04d1819d3982ea0fa5ad941b3654b6977dc661952b
MD5 hash:
a07716ee984084ef1fe9210b30884c4e
SHA1 hash:
2551d203b8dcadce1d953744907779c7c859c86b
Link:
https://www.unpac.me/results/fca42721-d09f-4c7d-9d68-fa0cd0fb4d7b/
SH256 hash:
49c63fe83f7e41b112637d582cd180214acf60babf4cdd13a2629f9de3874fec
MD5 hash:
57d7d998cbe24cebed375c065b462f88
SHA1 hash:
5836fd8d701f59bf2341aa3f7a6683293386dc0f
Link:
https://www.unpac.me/results/fca42721-d09f-4c7d-9d68-fa0cd0fb4d7b/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/49c63fe83f7e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/49c63fe83f7e41b112637d582cd180214acf60babf4cdd13a2629f9de3874fec

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Suspicious_Macro_Presence
Create hunting rule
Author:Mehmet Ali Kerimoglu (CYB3RMX)
Description:This rule detects common malicious/suspicious implementations.
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

Web download

Formbook

Executable exe 49c63fe83f7e41b112637d582cd180214acf60babf4cdd13a2629f9de3874fec

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/379975/

Comments