MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dc5eb730f1df702be89804ca234b60fec5fed7b6ed8d6c719f7006f40775f888. 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 16 File information Comments
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SHA256 hash: dc5eb730f1df702be89804ca234b60fec5fed7b6ed8d6c719f7006f40775f888
SHA3-384 hash: 610a87947b1d770841102fc2bd090dc103805348ab535f7e31af872f8ca58ca32437212a66724a4ad01ee99813c044ff
SHA1 hash: d40d5af3e7e6a32196a99afc104d5d3b1ce19cce
MD5 hash: 316a7b13ad3a427cfff4398ea219e0a1
humanhash: kentucky-fix-coffee-carbon
File name:ORDER#60541 PDF.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:315'914 bytes
First seen:2023-09-27 06:25:16 UTC
Last seen:2023-09-27 06:27:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 9dda1a1d1f8a1d13ae0297b47046b26e (64 x Formbook, 39 x GuLoader, 22 x RemcosRAT)
ssdeep 6144:LnPdudwDN8L2nP5qqhj0SXmP+wN0r9+AOSctemboVrRChniJTpfnsqwwEZAyiX:LnPdB8L2nthISsNOjO5eeoIVITp/s9FC
Threatray 1'980 similar samples on MalwareBazaar
TLSH T10E64135437E4C47BD8A30B308B36997678E76A4620B88A8F53C01F957CF11A37C69A5B
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 cocaman
Tags:exe FormBook payment

Intelligence

File Origin
# of uploads :
2
# of downloads :
261
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
ORDER#60541 PDF.exe
Verdict:
Malicious activity
Analysis date:
2023-09-27 06:27:17 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/19a0dfb0-1ca7-43cc-ac50-faa3f565f466

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/451451/
Detection(s):
Sanesecurity.Rogue.0hr.20230927-0235.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
Sending a custom TCP request
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin masquerade overlay packed shell32
Link:
https://www.filescan.io/uploads/6513cafb83a0c6425d007560/reports/688f2951-a781-4135-a797-04fcfe4d16fe/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/dc5eb730f1df702be89804ca234b60fec5fed7b6ed8d6c719f7006f40775f888
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/daf072f8-348b-451e-8f91-a46c44020def
Result
Threat name:
FormBook, NSISDropper
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1314982
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
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 detect virtualization through RDTSC time measurements
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1314982 Sample: ORDER#60541_PDF.exe Startdate: 27/09/2023 Architecture: WINDOWS Score: 100 36 xbus.tech 2->36 38 www.xbus.tech 2->38 40 13 other IPs or domains 2->40 56 Snort IDS alert for network traffic 2->56 58 Multi AV Scanner detection for domain / URL 2->58 60 Found malware configuration 2->60 62 9 other signatures 2->62 12 ORDER#60541_PDF.exe 18 2->12         started        signatures3 process4 file5 34 C:\Users\user\AppData\...\mrizmgmlut.exe, PE32 12->34 dropped 15 mrizmgmlut.exe 12->15         started        process6 signatures7 72 Antivirus detection for dropped file 15->72 74 Multi AV Scanner detection for dropped file 15->74 76 Machine Learning detection for dropped file 15->76 78 3 other signatures 15->78 18 mrizmgmlut.exe 15->18         started        process8 signatures9 48 Modifies the context of a thread in another process (thread injection) 18->48 50 Maps a DLL or memory area into another process 18->50 52 Sample uses process hollowing technique 18->52 54 Queues an APC in another process (thread injection) 18->54 21 explorer.exe 38 1 18->21 injected process10 dnsIp11 42 xbus.tech 103.82.22.78, 49729, 80 XIAOZHIYUN1-AS-APICIDCNETWORKUS Viet Nam 21->42 44 www.kentuckywalkabout.com 74.220.199.6, 49730, 80 UNIFIEDLAYER-AS-1US United States 21->44 46 7 other IPs or domains 21->46 64 System process connects to network (likely due to code injection or exploit) 21->64 25 rundll32.exe 21->25         started        28 autochk.exe 21->28         started        signatures12 process13 signatures14 66 Modifies the context of a thread in another process (thread injection) 25->66 68 Maps a DLL or memory area into another process 25->68 70 Tries to detect virtualization through RDTSC time measurements 25->70 30 cmd.exe 1 25->30         started        process15 process16 32 conhost.exe 30->32         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/dc5eb730f1df702be89804ca234b60fec5fed7b6ed8d6c719f7006f40775f888/
Threat name:
Win32.Trojan.NSISInject
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Status:
Malicious
First seen:
2023-09-26 23:24:18 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
26 of 37 (70.27%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=3rplomhr35ycx2eyatfcgs3a73c75v5w5wgwy4m7oadpib3v7cea._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
03ffe862ddce5d29a530979327b5c41e8d952c0785cc02578061fe234543519f
Formbook
190090b95e7c9b2410ceb2149bb1c4369550963e56693e331bda3d020a0018e2
Formbook
21ccf1fad3e1a08f580d5f0d5aa2d13fb1a633aa1c68100d435628a437efb89b
Formbook
2334ecedc27e808bbf63a9c3813298d6605d227c6c9f01a8f1f5a636f8439436
Formbook
244da7e5507e828266a961e3f4bd165f1b8c408463157d6c1e01bef1cf162034
Formbook
369de2afba1e4a4807ac66f57dfb436ec13cd46a5c09f6a4d7faedc788d04be7
Formbook
b799dc2f99d7cf59b9379f6ac7b32fe0852d2eab2386d20799c3085d38a576a5
Formbook
f2f5aed974966a3e0339b2092b7b128e22032b8d1bb6a9395a110a710a52acc7
Formbook
+ 1'970 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:sn26 rat spyware stealer trojan
Link:
https://tria.ge/reports/230927-g663fsgd7t/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
440c47642fadc38b82eb13c0fea6ce5ee18c92db1546d79a4ea7014d4d6661c5
MD5 hash:
8fb4e2f0f586802981b2ff48d90f3cf9
SHA1 hash:
1c9eecec10e607a35dfa9263ed18ae9841eb480d
Link:
https://www.unpac.me/results/85a65b1e-35f2-490e-b671-ba157ec6b65d/
SH256 hash:
dc5eb730f1df702be89804ca234b60fec5fed7b6ed8d6c719f7006f40775f888
MD5 hash:
316a7b13ad3a427cfff4398ea219e0a1
SHA1 hash:
d40d5af3e7e6a32196a99afc104d5d3b1ce19cce
Link:
https://www.unpac.me/results/85a65b1e-35f2-490e-b671-ba157ec6b65d/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/dc5eb730f1df/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/dc5eb730f1df702be89804ca234b60fec5fed7b6ed8d6c719f7006f40775f888

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
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
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.

Malspam

Formbook

r00 65ec99a9c28ef34b40a2047b155d333990ee656804af0c2f8b4966f630d86c77

Formbook

Executable exe dc5eb730f1df702be89804ca234b60fec5fed7b6ed8d6c719f7006f40775f888

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 65ec99a9c28ef34b40a2047b155d333990ee656804af0c2f8b4966f630d86c77
  
Dropped by
SHA256 b117bc0cc338ead0a57db5dacbdf3ed2210b2e290a2b2428e3cead53e4802480
Cape
Cape
https://www.capesandbox.com/analysis/451451/
  
Dropped by
MD5 73312dcf38018e6744dbb69975f4af02
  
Dropped by
MD5 d93a41e0bb949cc347179ab09ee402a4

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