MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ecc081d22527f522ace5ca77d6991d355985b268f718e3ec60826d94dd8081d8. 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 18 File information Comments
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SHA256 hash: ecc081d22527f522ace5ca77d6991d355985b268f718e3ec60826d94dd8081d8
SHA3-384 hash: 9020545b8981e1e7909c3ce034e5fda38082132e81f9a975fb75c6ff46625c79e7051fe4cf851bd6387c902f802a13af
SHA1 hash: f409658fb238aa2d08727a0479c7af6b3e4fd553
MD5 hash: 41216f4f728c1d95b35f7f7c24cec5d5
humanhash: oxygen-moon-undress-carbon
File name:PJS-4021339 IND.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:371'786 bytes
First seen:2023-11-22 06:58:14 UTC
Last seen:2023-11-22 08:16:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 6144:XBlL/H1PQmoMcWIeR/ERl6X3JB1iJLb/rVWGyu/QGgb9uZcNM:RF9QzlWdsr6X3JHALjpyu/hK9fS
TLSH T1188412867DD21CD3CADA07710A61BE28D77E4D244031F60727A0ED5FCA72AD79F8A066
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 70e8d4d6d6d4d4d4 (10 x Formbook)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
331
Origin country :
DE DE
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/459664/
Detection(s):
SecuriteInfo.com.Gen.Variant.Fragtor.446728.29691.14464.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Sending an HTTP POST request
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Gathering data
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/ecc081d22527f522ace5ca77d6991d355985b268f718e3ec60826d94dd8081d8
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/bde34f29-95f1-4b1f-a4f0-d3e30df8a87b
Result
Threat name:
FormBook, NSISDropper
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1346273
Signature
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Injects a PE file into a foreign processes
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)
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)
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1346273 Sample: PJS-4021339_IND.exe Startdate: 22/11/2023 Architecture: WINDOWS Score: 100 35 www.wangbaomen23.xyz 2->35 37 www.warnernc.com 2->37 39 16 other IPs or domains 2->39 51 Snort IDS alert for network traffic 2->51 53 Multi AV Scanner detection for domain / URL 2->53 55 Malicious sample detected (through community Yara rule) 2->55 59 6 other signatures 2->59 11 PJS-4021339_IND.exe 17 2->11         started        signatures3 57 Performs DNS queries to domains with low reputation 35->57 process4 file5 33 C:\Users\user\AppData\Local\...\kcudevw.exe, PE32 11->33 dropped 14 kcudevw.exe 11->14         started        process6 signatures7 71 Multi AV Scanner detection for dropped file 14->71 73 Detected unpacking (changes PE section rights) 14->73 75 Machine Learning detection for dropped file 14->75 77 2 other signatures 14->77 17 kcudevw.exe 14->17         started        process8 signatures9 47 Maps a DLL or memory area into another process 17->47 49 Queues an APC in another process (thread injection) 17->49 20 GaivNzWgBLzZqnxPhBO.exe 17->20 injected process10 process11 22 netsh.exe 13 20->22         started        signatures12 61 Tries to steal Mail credentials (via file / registry access) 22->61 63 Tries to harvest and steal browser information (history, passwords, etc) 22->63 65 Writes to foreign memory regions 22->65 67 3 other signatures 22->67 25 explorer.exe 36 1 22->25 injected 29 GaivNzWgBLzZqnxPhBO.exe 22->29 injected 31 firefox.exe 22->31         started        process13 dnsIp14 41 www.blackgrow.info 203.161.53.83, 49720, 49721, 49722 VNPT-AS-VNVNPTCorpVN Malaysia 25->41 43 mydesigneredge.com 162.144.13.104, 49736, 49737, 49738 UNIFIEDLAYER-AS-1US United States 25->43 45 9 other IPs or domains 25->45 69 System process connects to network (likely due to code injection or exploit) 25->69 signatures15
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ecc081d22527f522ace5ca77d6991d355985b268f718e3ec60826d94dd8081d8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ecc081d22527f522ace5ca77d6991d355985b268f718e3ec60826d94dd8081d8/
Threat name:
Win32.Trojan.NSISInject
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Status:
Malicious
First seen:
2023-11-22 02:00:28 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
24 of 36 (66.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=5taidurfe72sflhfzj35ngi5gvmylmti64moh3daqjwzjxmaqhma._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/231122-hr3l6abe6t/
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:
568a7da2bff42094514b3c8cda6ddbb35ee512c1555e6108bc4a8f1b0ca82f05
MD5 hash:
9c399b7c7da398a5912deba1b7712327
SHA1 hash:
8b914fe46df7335df48e5abf6cda0a668af17faf
Link:
https://www.unpac.me/results/1eedd7b9-bf8c-4706-8f17-6f4929701a6b/
SH256 hash:
058d3089465887222f92c67a8ceec31465f31f12aa085467a6bee7fc8b770bf5
MD5 hash:
d6ee87a9dbacde2f630880c17f5e81bb
SHA1 hash:
533bb6af5cc2acdd4a6f0d5edb635c1c8ad7c59e
Link:
https://www.unpac.me/results/1eedd7b9-bf8c-4706-8f17-6f4929701a6b/
SH256 hash:
ecc081d22527f522ace5ca77d6991d355985b268f718e3ec60826d94dd8081d8
MD5 hash:
41216f4f728c1d95b35f7f7c24cec5d5
SHA1 hash:
f409658fb238aa2d08727a0479c7af6b3e4fd553
Link:
https://www.unpac.me/results/1eedd7b9-bf8c-4706-8f17-6f4929701a6b/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ecc081d22527/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ecc081d22527f522ace5ca77d6991d355985b268f718e3ec60826d94dd8081d8

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:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
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:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
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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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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_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

Executable exe ecc081d22527f522ace5ca77d6991d355985b268f718e3ec60826d94dd8081d8

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/459664/

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