MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 66e023153783841c82581216957c689782313b971b270bf48f1ec3bc1885d3e4. 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: 11


Intelligence 11 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 66e023153783841c82581216957c689782313b971b270bf48f1ec3bc1885d3e4
SHA3-384 hash: ce08099a8c534ec0f1202328e905658dba6f413f378d6d0fd6993d08b05c1ca1f8d06fdc163a8953ea68c6e9fecf3db0
SHA1 hash: 7059119d654309cea64c1713cad164c2c72c37d3
MD5 hash: 2b3e9adf640de22c1d9fef1fa8d395f8
humanhash: nineteen-six-tennis-fillet
File name:Ponuda dokument_2022081802362452352535282837.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:449'568 bytes
First seen:2022-09-02 11:36:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:BZjt4CCNzcnyusRvX6AinZyAatdqFpCd:/yuAdiZ7UMpCd
TLSH T1E3A429E0317C93CFD0A68DB10FCA4A7079F135AC98D0560EA0F6AB2D93D6395588D5FA
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon d4a6a494a48484a4 (65 x AgentTesla, 39 x Formbook, 8 x RemcosRAT)
Reporter 0xToxin
Tags:exe FormBook


Avatar
0xToxin
dropped from:
https://bazaar.abuse.ch/sample/bf7c624a4b0fc03f185dce9d47e3efa98cd7ec5ba029e40902745a9dd8dd25a5/

Intelligence

File Origin
# of uploads :
1
# of downloads :
291
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Ponuda dokument_2022081802362452352535282837.exe
Verdict:
Malicious activity
Analysis date:
2022-09-02 11:39:50 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/472e956b-5451-498b-afa9-ed62b4e8207f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/307405/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/6311eb22e1fbecb89884741c/reports/cf57c2bb-8e12-4194-90b1-0de0a503bb9a/overview
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/27ef8484-128e-428d-8c4d-3a62cabb9b1c
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1064024
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Detected potential unwanted application
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 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 signatures2 2 Behavior Graph ID: 696550 Sample: Ponuda dokument_20220818023... Startdate: 02/09/2022 Architecture: WINDOWS Score: 100 32 Malicious sample detected (through community Yara rule) 2->32 34 Multi AV Scanner detection for submitted file 2->34 36 Yara detected FormBook 2->36 38 3 other signatures 2->38 8 Ponuda dokument_2022081802362452352535282837.exe 1 2->8         started        process3 file4 24 Ponuda dokument_20...52535282837.exe.log, ASCII 8->24 dropped 50 Writes to foreign memory regions 8->50 52 Allocates memory in foreign processes 8->52 54 Injects a PE file into a foreign processes 8->54 12 cvtres.exe 8->12         started        15 cvtres.exe 8->15         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 12->56 58 Maps a DLL or memory area into another process 12->58 60 Sample uses process hollowing technique 12->60 62 Queues an APC in another process (thread injection) 12->62 17 explorer.exe 12->17 injected process8 dnsIp9 26 www.fenixbedrijf.com 94.154.117.171, 49778, 49779, 49780 SMNT-NETPL unknown 17->26 28 www.5959corporate.com 209.99.64.55, 49774, 49775, 49776 CONFLUENCE-NETWORK-INCVG United States 17->28 30 3 other IPs or domains 17->30 40 System process connects to network (likely due to code injection or exploit) 17->40 21 control.exe 13 17->21         started        signatures10 process11 signatures12 42 Tries to steal Mail credentials (via file / registry access) 21->42 44 Tries to harvest and steal browser information (history, passwords, etc) 21->44 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/66e023153783841c82581216957c689782313b971b270bf48f1ec3bc1885d3e4/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-09-02 09:31:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
19 of 41 (46.34%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=m3qcgfjxqocbzasyciljk7dis6bdco4xdmtqx5epd3b3ygef2psa._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/220902-nq59jsdcaj/
Behaviour
Gathers network information
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
Suspicious use of SetThreadContext
Loads dropped DLL
Unpacked files
SH256 hash:
048ac6ac41ce8620664e52856b764e73cb6c1a1a7d5106955a41ffa2a9f234e0
MD5 hash:
9d2dc57fa732ac7a97200f9869d4a73a
SHA1 hash:
83ff6f3177c76f33489ef068495993df8603677d
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/bbf9d1b8-5373-4889-8a6c-8df16b1e4e83/
Parent samples :
15eb688bffed96b0b324724e48b258dc6c6deb76d71310b26b01e1e12f26108c
66e023153783841c82581216957c689782313b971b270bf48f1ec3bc1885d3e4
SH256 hash:
434bc3647044e56ae8b8b86f982151f3bfc9f92f85ec728a7d64918ca9519078
MD5 hash:
0ae5ea03814485d9002b36c4dd650f47
SHA1 hash:
ddb3025d46a834d2ea3d216a50630c45a95418f2
Link:
https://www.unpac.me/results/bbf9d1b8-5373-4889-8a6c-8df16b1e4e83/
SH256 hash:
66e023153783841c82581216957c689782313b971b270bf48f1ec3bc1885d3e4
MD5 hash:
2b3e9adf640de22c1d9fef1fa8d395f8
SHA1 hash:
7059119d654309cea64c1713cad164c2c72c37d3
Link:
https://www.unpac.me/results/bbf9d1b8-5373-4889-8a6c-8df16b1e4e83/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/66e023153783/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/66e023153783841c82581216957c689782313b971b270bf48f1ec3bc1885d3e4

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:INDICATOR_EXE_Packed_ConfuserEx
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/307405/

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