MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bc5e28c37423ff0c939fc98754280a3bba22bbad3c7048894d0908c445477c5e. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bc5e28c37423ff0c939fc98754280a3bba22bbad3c7048894d0908c445477c5e
SHA3-384 hash: 8c7652b38f7758ea04592b1e7488cf6b14cb5c577971f297f6c0ec8c51f8c0786e64942de2132104a973d66effa81d88
SHA1 hash: a53dfc09ed4d9dae872f9cc07d0f9dd82004ff9d
MD5 hash: a3cdad1aab5ff2c7d9e3f52ab9f85b6e
humanhash: pasta-avocado-alaska-oscar
File name:file
Download: download sample
Signature Formbook
Create hunting rule
File size:309'760 bytes
First seen:2022-11-23 15:11:45 UTC
Last seen:2022-11-23 16:32:44 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:YlfHTc+8rN/t8jsY7zgWS3c4Nccl1csSwr6nanwMnayScqD:YOdz8gY7zgWSsnMcW6an6ySXD
Threatray 3'541 similar samples on MalwareBazaar
TLSH T13964DF8CB6507ADFC89BC9B28EA81C64EA60747B430FD213E41725ADCA4D59BCF051F2
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 jstrosch
Tags:.NET exe FormBook MSIL

Intelligence

File Origin
# of uploads :
2
# of downloads :
443
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Inquiry for Sincola Machinery Co.,Ltd.js
Verdict:
Malicious activity
Analysis date:
2022-11-23 14:25:57 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/3b7292da-a7a5-43ca-9558-8f6b7d61e26f

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/337697/
Detection(s):
SecuriteInfo.com.Trojan.DownloaderNET.345.28328.26914.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Сreating synchronization primitives
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Searching for synchronization primitives
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:
obfuscated packed
Link:
https://www.filescan.io/uploads/637e384394f9bac087b325c3/reports/e2e3ed7f-5728-4033-9a29-2863f1c79107/overview
Result
Verdict:
UNKNOWN
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/18c13dbe-509b-4441-87fc-1dae5b457518
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1119814
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
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 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
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 signatures2 2 Behavior Graph ID: 752529 Sample: file.exe Startdate: 23/11/2022 Architecture: WINDOWS Score: 100 32 Snort IDS alert for network traffic 2->32 34 Malicious sample detected (through community Yara rule) 2->34 36 Antivirus detection for URL or domain 2->36 38 6 other signatures 2->38 8 file.exe 1 2->8         started        process3 file4 24 C:\Users\user\AppData\Local\...\file.exe.log, CSV 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 RegSvcs.exe 8->12         started        15 RegSvcs.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.hnsmhbkj.com 154.208.150.147, 49705, 49706, 49707 SKHT-ASShenzhenKatherineHengTechnologyInformationCo Seychelles 17->26 28 www.demixafrica.com 156.237.222.250, 49701, 80 DXTL-HKDXTLTseungKwanOServiceHK Seychelles 17->28 30 2 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/bc5e28c37423ff0c939fc98754280a3bba22bbad3c7048894d0908c445477c5e/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-11-23 11:40:01 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xrpcrq3uep7qze47zgdvikakho5cfo5nhryercknbeemirkhprpa._file
Verdict:
suspicious
Similar samples:
5e37a85642397700f4d2b763aef9debbed637b8d0a55caecd88b5deea01430fb
Formbook
62cf8452627f42cc0f5655a12ef386c720e11f2fd2ad7ec64ea821184ffacc65
Formbook
63da7c7f4bf0ab550e7ff73f9ae2f07839f5f701e1187aa4856480c372c7124c
Formbook
6958abe800cfc61111ed84296406d0b8cb8a251209bb08b5772a25fc0c65ac2c
Formbook
9fad67110bdcacafd444911b652eaa4730b4fa537f4f5de14fc73ffcadeae023
Formbook
b1865d79b8956cc7dd3940170bd4be0e34e937e0ba1ecf00b877ecf86a3c85b2
Formbook
ddff440f629431c04ca4be774119230fc6309eb9227087c2cd7e6fd20347f41f
Formbook
f4c71e15f3c1d7352ad86135ffe99a2fadccc1c7496368cefef95ffee9300399
Formbook
+ 3'531 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:tpd2 rat spyware stealer trojan
Link:
https://tria.ge/reports/221123-sk614sbe98/
Behaviour
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
Formbook
Unpacked files
SH256 hash:
08dc131daa003bfef9743c47cc6707bdcfbf880795eb9f7f26f51b389e357afd
MD5 hash:
014cc98f0e3e039ec235d577ec2d459f
SHA1 hash:
dd5b12b49e99986a680d7cfa2b3b79714f03f68e
Link:
https://www.unpac.me/results/2d8c139d-00e1-4c88-ad12-88885d89ed00/
SH256 hash:
8dece564d150452c6d9da766fc891c95a63accc4d1a5e09aa6f6ba15256860e2
MD5 hash:
1cafe62db4f494317cbfff0a2d17e3bb
SHA1 hash:
40c1437090ee9795aceceb6e6a8b03eb2e3b93db
Link:
https://www.unpac.me/results/2d8c139d-00e1-4c88-ad12-88885d89ed00/
SH256 hash:
bc5e28c37423ff0c939fc98754280a3bba22bbad3c7048894d0908c445477c5e
MD5 hash:
a3cdad1aab5ff2c7d9e3f52ab9f85b6e
SHA1 hash:
a53dfc09ed4d9dae872f9cc07d0f9dd82004ff9d
Link:
https://www.unpac.me/results/2d8c139d-00e1-4c88-ad12-88885d89ed00/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bc5e28c37423/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/bc5e28c37423ff0c939fc98754280a3bba22bbad3c7048894d0908c445477c5e

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe bc5e28c37423ff0c939fc98754280a3bba22bbad3c7048894d0908c445477c5e

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/337697/
  
URLhaus
https://urlhaus.abuse.ch/url/2431650/

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