MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8a75a7116ae80c077d8d4674fa044bd40670844116f200337bbbcef5ae3ee9a1. 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: 15


Intelligence 15 IOCs YARA 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8a75a7116ae80c077d8d4674fa044bd40670844116f200337bbbcef5ae3ee9a1
SHA3-384 hash: 6dfc5c1430d7c3249a2ee034c67a85bb16a6df564f572abf9c73587eb8e5dc4b3fd90ac818aa42bd62217e92f7085c2c
SHA1 hash: 4cac8a6114ec36b361f76510f8614408c8c091ae
MD5 hash: 244606adb1918cd7f50048a8ec6f5d1c
humanhash: saturn-oklahoma-indigo-cat
File name:Documento de confirmacion de orden de compra OC 1580070060.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:620'544 bytes
First seen:2024-02-15 11:01:59 UTC
Last seen:2024-02-19 08:42:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:j2eQ5vziHD5Tmew6hV6/lRNZPj9x6LEbOFMSgPTsuM:CriFT6ymzj9xuElSqsuM
Threatray 783 similar samples on MalwareBazaar
TLSH T193D4230E22087663C7CD09F994500A4273B9A76251CBE7C79F6750BD10BBFDE4662E47
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) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
282
Origin country :
HU HU
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/476297/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin packed shell32
Link:
https://www.filescan.io/uploads/65cdef4490a5367ac0c66927/reports/9d4c3cf7-3b9f-4ea1-90e6-513a5b94b085/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/8a75a7116ae80c077d8d4674fa044bd40670844116f200337bbbcef5ae3ee9a1
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/f5cf457c-5725-492a-abfc-dc9629729604
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1392765
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1392765 Sample: Documento de confirmacion d... Startdate: 15/02/2024 Architecture: WINDOWS Score: 100 32 www.yassa-hany.online 2->32 34 www.tobegoodlife.net 2->34 36 11 other IPs or domains 2->36 44 Snort IDS alert for network traffic 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 14 other signatures 2->50 11 Documento de confirmacion de orden de compra OC 1580070060.exe 4 2->11         started        signatures3 process4 signatures5 60 Adds a directory exclusion to Windows Defender 11->60 62 Injects a PE file into a foreign processes 11->62 14 Documento de confirmacion de orden de compra OC 1580070060.exe 11->14         started        17 powershell.exe 21 11->17         started        process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 70 Queues an APC in another process (thread injection) 14->70 19 explorer.exe 90 1 14->19 injected 23 conhost.exe 17->23         started        process8 dnsIp9 38 www.yassa-hany.online 103.224.212.213, 49719, 80 TRELLIAN-AS-APTrellianPtyLimitedAU Australia 19->38 40 www.anti-theft-device-82641.bond 104.247.82.92, 49715, 80 TEAMINTERNET-CA-ASCA Canada 19->40 42 4 other IPs or domains 19->42 52 System process connects to network (likely due to code injection or exploit) 19->52 25 wlanext.exe 19->25         started        signatures10 process11 signatures12 54 Modifies the context of a thread in another process (thread injection) 25->54 56 Maps a DLL or memory area into another process 25->56 58 Tries to detect virtualization through RDTSC time measurements 25->58 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8a75a7116ae80c077d8d4674fa044bd40670844116f200337bbbcef5ae3ee9a1
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8a75a7116ae80c077d8d4674fa044bd40670844116f200337bbbcef5ae3ee9a1/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2024-02-13 14:21:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rj22oelk5agao7mniz2pubcl2qdhbbcbc3zaam33xphpllr65gqq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
446ff8a7bbf81d173be5d0a31738f87e2738af8312bc8f4aa4ca3b92b951fd3e
Formbook
6a14e79be0398899cfc53dc234f9e51f13705afe8b2cf15c404923bb6706ea09
Formbook
7d08e32acf3a9ce5b471219b20d8c8c9bbe4fc03601f41b36291afdec86f39ce
Formbook
d93058ce47215773bfed7fc6a36c4991a4d3278ce71cfd6ec23d0c3b74566798
Formbook
e6ad0e54bdd3ceb24a7139747c35bb9e9b2d5a8208b677562b87be8745033d7d
Formbook
ea54b2d8e2e29ed25f7167eff3c4c5d07f7d350cc89d006fb2039cd848f87ac2
Formbook
+ 773 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:pz08 rat spyware stealer trojan
Link:
https://tria.ge/reports/240215-m46a2aeg8y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
24e196036554f430cfb19fb9343e4d2ee0f51129c1b270974ae27bd6581cf33b
MD5 hash:
261de885397be969e26e090bdc497544
SHA1 hash:
f10620c94b6d588a0a142904bc29dd32aa36ff93
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/3d534be2-cef6-43cc-89d3-f8d68be3b5dc/
Parent samples :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 hash:
32df75ef3a1a17762569f99e7b4009454a5c5c4f3c2da13491120f468c7fd7a8
MD5 hash:
8ac230606e0a385736481baf1afecf09
SHA1 hash:
661e9b28ab525a680df93d976c3fdb1cdc0f192c
Link:
https://www.unpac.me/results/3d534be2-cef6-43cc-89d3-f8d68be3b5dc/
SH256 hash:
f9886ddb4384bd8acc3a156e58fe787a610f5f1f63f095b442ec1ebf1e37f9e3
MD5 hash:
5c67cfc8c2c83a6b55e08775f6dbef3f
SHA1 hash:
f197644b35be6df181778ca79a927f16e82dab87
Link:
https://www.unpac.me/results/3d534be2-cef6-43cc-89d3-f8d68be3b5dc/
SH256 hash:
971c821aa19832e04f1dd44b19cdb909d36d27be2f9e62edd10bf7887a43d15a
MD5 hash:
6d7a285502323918820b8513b5f33d75
SHA1 hash:
9633177bbb29c2563fec4a7dd381f4a278588437
Link:
https://www.unpac.me/results/3d534be2-cef6-43cc-89d3-f8d68be3b5dc/
SH256 hash:
862769872b9c9e09e3bf2b7de6e25680364d32e2d57a9e176d0fbc64f0ad107b
MD5 hash:
9b8c24b2db6130d7bc8b801ccc9eeb8a
SHA1 hash:
05691fb02b2760d91004ac83b5a99662feb5dad7
Link:
https://www.unpac.me/results/3d534be2-cef6-43cc-89d3-f8d68be3b5dc/
SH256 hash:
8a75a7116ae80c077d8d4674fa044bd40670844116f200337bbbcef5ae3ee9a1
MD5 hash:
244606adb1918cd7f50048a8ec6f5d1c
SHA1 hash:
4cac8a6114ec36b361f76510f8614408c8c091ae
Link:
https://www.unpac.me/results/3d534be2-cef6-43cc-89d3-f8d68be3b5dc/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8a75a7116ae8/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/8a75a7116ae80c077d8d4674fa044bd40670844116f200337bbbcef5ae3ee9a1

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
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: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.

Malspam

Formbook

Executable exe 8a75a7116ae80c077d8d4674fa044bd40670844116f200337bbbcef5ae3ee9a1

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/476297/

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