MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 438b026b52bd8b11d0b752f5734bf8a20275a6746a522c4a8179f2f9030c5fb6. 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 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 438b026b52bd8b11d0b752f5734bf8a20275a6746a522c4a8179f2f9030c5fb6
SHA3-384 hash: 8ebb1349541d063c51826a0a20c976794374dd7528b223adcf3238f19c0808de2a8f7014012e33e4900ad3059d9e1c52
SHA1 hash: 1e2eab9663da32f9e2a04a3d30405c43a65caf8d
MD5 hash: 3ed5075e8e00e18ea203b86195f94d4c
humanhash: steak-ohio-xray-beryllium
File name:SecuriteInfo.com.Trojan.Packed2.46190.15325.19908
Download: download sample
Signature Formbook
Create hunting rule
File size:656'384 bytes
First seen:2024-01-30 01:34:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:xwEoIFFHgeg/cs/t1clJ6SsN8KmBcKRvUUooEk5vb3aMXlTKy0fxor:SEXFxs/tgg/hPaaMVKy0f
Threatray 701 similar samples on MalwareBazaar
TLSH T12CD4120473FC171BF8B667F67229064817B6B90A60E0D7ED0DD8A1DE0A75B428D28F67
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 SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
289
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
REQUERIMIENTO DE COTIZACIÓN pdf.zip
Verdict:
No threats detected
Analysis date:
2024-01-29 22:21:00 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/07892fa4-4f31-4777-808f-5b50718ebca3

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/473519/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.46190.15325.19908.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Creating a file
Launching cmd.exe command interpreter
Using the Windows Management Instrumentation requests
Setting browser functions hooks
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65b85249f44bfba43f58db06/reports/645367ed-4357-48ba-8b85-0c228cdb12d3/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/438b026b52bd8b11d0b752f5734bf8a20275a6746a522c4a8179f2f9030c5fb6
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/8d8d7c16-e9c2-4528-b33c-9cbbc3255126
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1383083
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
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
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspicious Process Patterns NTDS.DIT Exfil
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
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1383083 Sample: SecuriteInfo.com.Trojan.Pac... Startdate: 30/01/2024 Architecture: WINDOWS Score: 100 53 www.zezfhys.com 2->53 55 www.whatsapp1.autos 2->55 57 11 other IPs or domains 2->57 73 Snort IDS alert for network traffic 2->73 75 Multi AV Scanner detection for domain / URL 2->75 77 Found malware configuration 2->77 79 14 other signatures 2->79 11 SecuriteInfo.com.Trojan.Packed2.46190.15325.19908.exe 7 2->11         started        15 AfCiSc.exe 5 2->15         started        signatures3 process4 file5 49 C:\Users\user\AppData\Roaming\AfCiSc.exe, PE32 11->49 dropped 51 C:\Users\user\AppData\Local\...\tmp299F.tmp, XML 11->51 dropped 87 Uses schtasks.exe or at.exe to add and modify task schedules 11->87 89 Writes to foreign memory regions 11->89 91 Allocates memory in foreign processes 11->91 93 Adds a directory exclusion to Windows Defender 11->93 17 RegSvcs.exe 11->17         started        20 powershell.exe 23 11->20         started        22 schtasks.exe 1 11->22         started        95 Multi AV Scanner detection for dropped file 15->95 97 Machine Learning detection for dropped file 15->97 99 Injects a PE file into a foreign processes 15->99 24 RegSvcs.exe 15->24         started        26 schtasks.exe 1 15->26         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 17->65 67 Maps a DLL or memory area into another process 17->67 69 Sample uses process hollowing technique 17->69 71 2 other signatures 17->71 28 explorer.exe 6 1 17->28 injected 32 WmiPrvSE.exe 20->32         started        34 conhost.exe 20->34         started        36 conhost.exe 22->36         started        38 conhost.exe 26->38         started        process9 dnsIp10 59 www.batuoe.com 172.67.141.17, 49743, 80 CLOUDFLARENETUS United States 28->59 61 www.functional-yarns.com 108.181.107.138, 49742, 80 ASN852CA Canada 28->61 63 2 other IPs or domains 28->63 101 System process connects to network (likely due to code injection or exploit) 28->101 40 cmd.exe 28->40         started        43 systray.exe 28->43         started        signatures11 process12 signatures13 81 Modifies the context of a thread in another process (thread injection) 40->81 83 Maps a DLL or memory area into another process 40->83 85 Tries to detect virtualization through RDTSC time measurements 40->85 45 cmd.exe 40->45         started        process14 process15 47 conhost.exe 45->47         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/438b026b52bd8b11d0b752f5734bf8a20275a6746a522c4a8179f2f9030c5fb6
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/438b026b52bd8b11d0b752f5734bf8a20275a6746a522c4a8179f2f9030c5fb6/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2024-01-30 00:02:47 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=iofqe22sxwfrdufxkl2xgs7yuibhljtunjjcysubphzpsayml63a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2cc91aca07118474798c2daad4fc680b057db86e4dca2201da9791a24f53181b
Formbook
36ca307d291dd056c62947b445d527b4a84c42d2d669382abb78413185d3a6a1
Formbook
60f31cb36be01c55029cfd0df0ec485dfbaeed434bc1dbbbdde091e767f7fdf3
Formbook
849ff9a40f9baf27f720a7fd7d4f19e749f055627abd2c2bf5f7cd0629a06ab9
Formbook
965f65d0873e8bbe9352ddb352941058bdef0e8c6a529141f742caa4f35aef05
Formbook
ac0b1f47f36bdbc8974390d8473d74f6e71d5219a338796ed9d0582f8020f8c7
Formbook
e269937583767980d580b0b8b2a95a9b241759e4836acb41618c8bd4c10ffcfa
Formbook
e82835d8472582cb801c463929cfd06f756dd80d276544a8e1a8e4f556d05c80
Formbook
f0164ec8c236a65046db19bb07dc24d20c7785bf1adc0823d89b568164dae9b0
Formbook
fac3a6c2d9b0a406b2dbcb2fd466e0f18e5cc7bb5ca2e0b565701a169c9f1806
Formbook
+ 691 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:gy14 rat spyware stealer trojan
Link:
https://tria.ge/reports/240130-bzn1eafab8/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
75accc0c2926e373c395dafe8324b0dbd256bb398ae8a765abbab18f2729c09a
MD5 hash:
f4aa278c181d6a5da571b7fa14025898
SHA1 hash:
523666ffb8bed7d116377446724536c553629dae
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/ac10f880-2a1e-4ddd-9c04-7c79e9b87f2d/
Parent samples :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 hash:
174c059b5dc69521dc27e01f6ba0cc1ffb4e08219ad07faaa65c0b147420a1b0
MD5 hash:
6f1a4175618bb7dfcb3ae99b614ac1b4
SHA1 hash:
ac54db6b88cdd889513394642714d584aa44ac22
Link:
https://www.unpac.me/results/ac10f880-2a1e-4ddd-9c04-7c79e9b87f2d/
SH256 hash:
3014b859be7cafca84f61ab3398e0832d80175d76dc6ff4a45df7b2fef39dcaf
MD5 hash:
17cbde8bc5d57e164c1daa95d1b37d0b
SHA1 hash:
4856da540fd30d018fa511c9ce705871e1e2affa
Link:
https://www.unpac.me/results/ac10f880-2a1e-4ddd-9c04-7c79e9b87f2d/
SH256 hash:
3512e50a7509ca8b120d7835c69302e5d739fa3651dd65485e5739a1cc991ede
MD5 hash:
8bc76b6253fe4689a874767bdefec712
SHA1 hash:
4642b756487c2e1878e7e03e32e77b51df0b3b3e
Link:
https://www.unpac.me/results/ac10f880-2a1e-4ddd-9c04-7c79e9b87f2d/
SH256 hash:
438b026b52bd8b11d0b752f5734bf8a20275a6746a522c4a8179f2f9030c5fb6
MD5 hash:
3ed5075e8e00e18ea203b86195f94d4c
SHA1 hash:
1e2eab9663da32f9e2a04a3d30405c43a65caf8d
Link:
https://www.unpac.me/results/ac10f880-2a1e-4ddd-9c04-7c79e9b87f2d/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/438b026b52bd/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/438b026b52bd8b11d0b752f5734bf8a20275a6746a522c4a8179f2f9030c5fb6

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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: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.

Cape
Cape
https://www.capesandbox.com/analysis/473519/

Comments