MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f23c197a08df004d0646c8588e588d3ae064368a208f4679718c0c8995161362. 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 16 File information Comments

SHA256 hash: f23c197a08df004d0646c8588e588d3ae064368a208f4679718c0c8995161362
SHA3-384 hash: 1fd75303bcbc7986859a6c724ef7e30a631aa90acd648a83d861c71b1c5139f3dc53ab4758aaa6bb870b34640b6327ed
SHA1 hash: 74384800ab14eebdcf3b62b0f13cbc2df20695df
MD5 hash: 548a3a623b382b07f85baf5eb2dc629d
humanhash: earth-pluto-oscar-mike
File name:1400001809.exe
Download: download sample
Signature Formbook
File size:373'394 bytes
First seen:2023-09-28 09:29:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9dda1a1d1f8a1d13ae0297b47046b26e (64 x Formbook, 39 x GuLoader, 22 x RemcosRAT)
ssdeep 6144:LnPdudwDzytgb/dpESd71hJgew9aBKzejP4slpzl/fIAaIDIiSi1ojBHKK74xGlC:LnPdvy6b/dZp1UoAzmpxna/BqKp9U
Threatray 110 similar samples on MalwareBazaar
TLSH T152842271F6F1C017ED630630352A0F2386F8592E21958E1FE3D8AF69AC736C2859C766
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 d2e8ecb2b2a2b282 (106 x AgentTesla, 106 x Formbook, 24 x RedLineStealer)
Reporter lowmal3
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
288
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
1400001809.exe
Verdict:
Malicious activity
Analysis date:
2023-09-28 09:32:44 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 file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Unauthorized injection to a recently created process
Launching a process
DNS request
Sending an HTTP GET request
Reading critical registry keys
Sending an HTTP POST request
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
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, NSISDropper
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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 domain / URL
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)
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)
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1315736 Sample: 1400001809.exe Startdate: 28/09/2023 Architecture: WINDOWS Score: 100 42 Multi AV Scanner detection for domain / URL 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus detection for URL or domain 2->46 48 5 other signatures 2->48 10 1400001809.exe 18 2->10         started        process3 file4 30 C:\Users\user\AppData\Local\Temp\jzbab.exe, PE32 10->30 dropped 13 jzbab.exe 10->13         started        process5 signatures6 62 Multi AV Scanner detection for dropped file 13->62 64 Machine Learning detection for dropped file 13->64 66 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 13->66 68 Maps a DLL or memory area into another process 13->68 16 jzbab.exe 13->16         started        process7 signatures8 38 Maps a DLL or memory area into another process 16->38 40 Queues an APC in another process (thread injection) 16->40 19 zgLyaDwRlJJUEBQyIntllvsnYTPPVd.exe 16->19 injected process9 process10 21 wscript.exe 13 19->21         started        signatures11 50 Tries to steal Mail credentials (via file / registry access) 21->50 52 Tries to harvest and steal browser information (history, passwords, etc) 21->52 54 Modifies the context of a thread in another process (thread injection) 21->54 56 Maps a DLL or memory area into another process 21->56 24 explorer.exe 1 21->24 injected 28 zgLyaDwRlJJUEBQyIntllvsnYTPPVd.exe 21->28 injected process12 dnsIp13 32 www.blackgrow.info 203.161.53.83, 49809, 49810, 49811 VNPT-AS-VNVNPTCorpVN Malaysia 24->32 34 mydesigneredge.com 162.144.13.104, 49829, 49830, 49831 UNIFIEDLAYER-AS-1US United States 24->34 36 15 other IPs or domains 24->36 58 System process connects to network (likely due to code injection or exploit) 24->58 60 Performs DNS queries to domains with low reputation 24->60 signatures14
Threat name:
Win32.Trojan.Nsisx
Status:
Malicious
First seen:
2023-09-28 00:05:47 UTC
AV detection:
16 of 23 (69.57%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
b858614c7754227b7ea56552c83a57a75999aee241dc53a110a1c9ffd2db25a6
MD5 hash:
015120da817577057770fedcae47a422
SHA1 hash:
da297f7c0cf2db9923b2c8c61928252dd6333443
SH256 hash:
f23c197a08df004d0646c8588e588d3ae064368a208f4679718c0c8995161362
MD5 hash:
548a3a623b382b07f85baf5eb2dc629d
SHA1 hash:
74384800ab14eebdcf3b62b0f13cbc2df20695df
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:DebuggerCheck__GlobalFlags
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Author:Elastic Security
Rule name:win_formbook_w0
Author:@malgamy12

File information


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

Malspam

Formbook

Executable exe f23c197a08df004d0646c8588e588d3ae064368a208f4679718c0c8995161362

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments