MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b25ef1900e652bb134050946db0e2b68db9eb5afe55e93db3fddca8897498048. 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 15 File information Comments
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SHA256 hash: b25ef1900e652bb134050946db0e2b68db9eb5afe55e93db3fddca8897498048
SHA3-384 hash: b23455f701060e336ae8ca0d879099ed9614d3b12cd3cca77dac3fd3e08f76f6fce648d609b9cd19837cc6611da914ea
SHA1 hash: 75251f87dc2896a57cfa3f93280c99b601a5b38e
MD5 hash: c4c0cc517301f92d8444724c2c46f6a9
humanhash: london-uranus-paris-queen
File name:z46OrdemdeComprapdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:577'024 bytes
First seen:2023-10-31 10:40:01 UTC
Last seen:2023-10-31 12:54:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:o8e69yqLgPZNXHkKekwasvohc0JeWSvHGs+DmioN8:o6XU7jEfv6AWSvHGBIN
Threatray 161 similar samples on MalwareBazaar
TLSH T16BC4228573FD6F02D26E9BF05AF7512073B5462767A1E72E2DCD63DA09A7F081A41203
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon c4c6a2202e223684 (12 x AgentTesla, 8 x Formbook, 2 x Loki)
Reporter FXOLabs
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
4
# of downloads :
329
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
z46OrdemdeComprapdf.exe
Verdict:
Malicious activity
Analysis date:
2023-10-31 13:00:50 UTC
Tags:
formbook xloader sinkhole stealer spyware
Link:
https://app.any.run/tasks/aa8bd588-f28c-47ff-9e53-05c533952b4d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/457345/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.59820.29359.19117.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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 file in the %temp% directory
Creating a process with a hidden window
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/6540d9862e754890e47fd3d4/reports/c7aa1312-1b96-42ea-b827-a479915079c8/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/b25ef1900e652bb134050946db0e2b68db9eb5afe55e93db3fddca8897498048
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/df60fb66-21ad-4563-820e-ddb203591aca
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1334804
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
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
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
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 netstat to query active network connections and open ports
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: 1334804 Sample: z46OrdemdeComprapdf.exe Startdate: 31/10/2023 Architecture: WINDOWS Score: 100 51 www.tryradiantrose.com 2->51 53 www.saqw.top 2->53 55 3 other IPs or domains 2->55 71 Snort IDS alert for network traffic 2->71 73 Found malware configuration 2->73 75 Malicious sample detected (through community Yara rule) 2->75 77 9 other signatures 2->77 11 z46OrdemdeComprapdf.exe 7 2->11         started        15 HDkXWOrSAdJK.exe 5 2->15         started        signatures3 process4 file5 47 C:\Users\user\AppData\...\HDkXWOrSAdJK.exe, PE32 11->47 dropped 49 C:\Users\user\AppData\Local\...\tmp45FD.tmp, XML 11->49 dropped 85 Uses schtasks.exe or at.exe to add and modify task schedules 11->85 87 Adds a directory exclusion to Windows Defender 11->87 17 RegSvcs.exe 11->17         started        20 powershell.exe 23 11->20         started        22 schtasks.exe 1 11->22         started        89 Multi AV Scanner detection for dropped file 15->89 91 Writes to foreign memory regions 15->91 93 Allocates memory in foreign processes 15->93 95 Injects a PE file into a foreign processes 15->95 24 RegSvcs.exe 15->24         started        26 schtasks.exe 1 15->26         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 17->63 65 Maps a DLL or memory area into another process 17->65 67 Sample uses process hollowing technique 17->67 69 2 other signatures 17->69 28 explorer.exe 3 1 17->28 injected 32 conhost.exe 20->32         started        34 conhost.exe 22->34         started        36 conhost.exe 26->36         started        process9 dnsIp10 57 www.mha3c.top 103.127.124.199, 80 MOACKCOLTD-AS-APMOACKCoLTDKR Korea Republic of 28->57 59 www.tryradiantrose.com 104.21.16.87, 49722, 80 CLOUDFLARENETUS United States 28->59 61 2 other IPs or domains 28->61 97 System process connects to network (likely due to code injection or exploit) 28->97 99 Uses netstat to query active network connections and open ports 28->99 38 NETSTAT.EXE 12 28->38         started        41 systray.exe 28->41         started        signatures11 process12 signatures13 79 Modifies the context of a thread in another process (thread injection) 38->79 81 Maps a DLL or memory area into another process 38->81 83 Tries to detect virtualization through RDTSC time measurements 38->83 43 cmd.exe 38->43         started        process14 process15 45 conhost.exe 43->45         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b25ef1900e652bb134050946db0e2b68db9eb5afe55e93db3fddca8897498048
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b25ef1900e652bb134050946db0e2b68db9eb5afe55e93db3fddca8897498048/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2023-10-30 10:32:45 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wjppdeaomuv3cnafbfdnwdrlndnz5nnp4vpjhwz73xfirf2jqbea._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0372bd9c40187e5b4df86dae74c475d5f7b01de4424281dda221a579be971fb8
Formbook
0c6509de077fff4ef7548e682f672a5169136f7ce470b420f2f33890228bf0a4
Formbook
25e8610d483e74bac4bfc7189060e7fdeed775f6e82cd69b3a36d1a12b4e2af9
Formbook
608aa86a359a3a8cd3f5e51e98331376cb9bdefeb7d7a68e543799d253ff6da7
Formbook
9d507d3f7b58d898ff10eb7443b6feb32ea2ea6972d3ceafa67e2e0a1d0504fe
Formbook
a00ea565f9db4d7b4eeef36c77c6635a84ef610ad73890a2b0bd9852ff6d73f7
Formbook
b8e44f4a0d92297c5bb5b217c121f0d032850b38749044face2b0014e789adfb
Formbook
c18b8507f08a4cf285d6d1a9b918026424381b7aa93a737544de3f7eb0db21ca
Formbook
ee15b6d592e19dac7b1baedfd072befcf7351c2e65ca5b2fca9ed1fb61ba3e11
Formbook
f98b2fefbfa54e17d684f60629172f5f160259a6041b671f423eefbf0e51f949
Formbook
+ 151 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:g11y rat spyware stealer trojan
Link:
https://tria.ge/reports/231031-mqh9cahd65/
Behaviour
Creates scheduled task(s)
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
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
5235ad4d0625d61592255753f5c6644ec069c352df1679c16452dc9245f8d908
MD5 hash:
3d6f4b0f0eaf6a4961c0ac6faf0ebc28
SHA1 hash:
add22b84799c172946f57eb674915503edef193a
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/6599636a-0b49-479b-b999-ca0563db5e76/
Parent samples :
b25ef1900e652bb134050946db0e2b68db9eb5afe55e93db3fddca8897498048
46714c9ae42535b3a3d0aaa31e73582177a7b5d517584aff2206dd37d2ffa373
b2d2e3fea2eadfb727bfb8fd5ff090a1072dfae8b63a7f29d992ee50f820c182
SH256 hash:
d48ed258c513ae7df5afa9bc9facc9ae503b012fc7c84fbbd6c449e70c283aeb
MD5 hash:
3e932dd0b012a167b21dd531b32ce300
SHA1 hash:
64b76ef489e500c5f9e2c675cb4b430303e01ebb
Link:
https://www.unpac.me/results/6599636a-0b49-479b-b999-ca0563db5e76/
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/6599636a-0b49-479b-b999-ca0563db5e76/
SH256 hash:
a311c67e0bb00a74da93860302adb22926bedbf253cccd412609e8865aaa3577
MD5 hash:
4d9a190baac47411916c5ea0c62ebe91
SHA1 hash:
c54bb84403c45557daa8ddfc23ab94b507b332b9
Link:
https://www.unpac.me/results/6599636a-0b49-479b-b999-ca0563db5e76/
SH256 hash:
b25ef1900e652bb134050946db0e2b68db9eb5afe55e93db3fddca8897498048
MD5 hash:
c4c0cc517301f92d8444724c2c46f6a9
SHA1 hash:
75251f87dc2896a57cfa3f93280c99b601a5b38e
Link:
https://www.unpac.me/results/6599636a-0b49-479b-b999-ca0563db5e76/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b25ef1900e65/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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: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 b25ef1900e652bb134050946db0e2b68db9eb5afe55e93db3fddca8897498048

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/457345/

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