MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5e4b300ac46a2d4719d60e261c479afc3ed6f4027afcb5f620a7bdf33d876336. 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: 5e4b300ac46a2d4719d60e261c479afc3ed6f4027afcb5f620a7bdf33d876336
SHA3-384 hash: bed7a7ecc5064bae8bf3af4cfa486262c8c9d1e56e1da13d2b3cb57953ff87ffaba09a5734bf4cc4c327403f59c1e853
SHA1 hash: 54672f4dc2f975e1709357cecff80c9af47ae506
MD5 hash: 3e65edfaa6f448ab7c3c1ce75c40035a
humanhash: venus-ten-tennessee-chicken
File name:DOCUMENTOS FINALES PARA ENVÍOS pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:536'064 bytes
First seen:2023-11-02 20:37:32 UTC
Last seen:2023-11-02 22:16:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'660 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:sJbpsUCOc03SejVAWXP/oubUtwJCpKQjWQTUpnUx8U175BbRvn6b:2psUBJ3SMVAWYZtkCppm08U17Tbln4
Threatray 189 similar samples on MalwareBazaar
TLSH T1DDB42312537C7B67C87F43F488166F5D07B27A624061E6A91E80F0C7689AF204A53FB7
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 TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
300
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
DOCUMENTOS FINALES PARA ENVÍOS pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-11-02 22:50:04 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/b3b14dbe-2c9f-4f50-b4d5-6687abcfbb03

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
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
Unauthorized injection to a browser process
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/5e4b300ac46a2d4719d60e261c479afc3ed6f4027afcb5f620a7bdf33d876336
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/cda7fe3f-7862-4727-a400-153a2f7ba0d1
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1336244
Signature
.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
Initial sample is a PE file and has a suspicious name
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 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 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: 1336244 Sample: DOCUMENTOS_FINALES_PARA_ENV... Startdate: 02/11/2023 Architecture: WINDOWS Score: 100 64 www.ysudveg.buzz 2->64 66 www.y0rvragmr5.com 2->66 68 12 other IPs or domains 2->68 72 Snort IDS alert for network traffic 2->72 74 Found malware configuration 2->74 76 Malicious sample detected (through community Yara rule) 2->76 78 10 other signatures 2->78 11 DOCUMENTOS_FINALES_PARA_ENV#U00cdOS_pdf.exe 7 2->11         started        15 rBwLSXtme.exe 5 2->15         started        17 svchost.exe 1 1 2->17         started        signatures3 process4 dnsIp5 52 C:\Users\user\AppData\Roaming\rBwLSXtme.exe, PE32 11->52 dropped 54 C:\Users\user\AppData\Local\...\tmpAAF8.tmp, XML 11->54 dropped 96 Uses schtasks.exe or at.exe to add and modify task schedules 11->96 98 Writes to foreign memory regions 11->98 100 Allocates memory in foreign processes 11->100 102 Adds a directory exclusion to Windows Defender 11->102 20 RegSvcs.exe 11->20         started        23 RegSvcs.exe 11->23         started        25 powershell.exe 21 11->25         started        27 schtasks.exe 1 11->27         started        104 Multi AV Scanner detection for dropped file 15->104 106 Machine Learning detection for dropped file 15->106 108 Injects a PE file into a foreign processes 15->108 29 RegSvcs.exe 15->29         started        31 schtasks.exe 1 15->31         started        56 127.0.0.1 unknown unknown 17->56 file6 signatures7 process8 signatures9 80 Modifies the context of a thread in another process (thread injection) 20->80 82 Maps a DLL or memory area into another process 20->82 84 Sample uses process hollowing technique 20->84 86 Queues an APC in another process (thread injection) 20->86 33 explorer.exe 40 1 20->33 injected 88 Tries to detect virtualization through RDTSC time measurements 23->88 37 conhost.exe 25->37         started        39 conhost.exe 27->39         started        41 conhost.exe 31->41         started        process10 dnsIp11 58 trsmine.com 208.109.57.58, 80 SUCURI-SECUS United States 33->58 60 koru.clinic 81.169.145.77, 49732, 80 STRATOSTRATOAGDE Germany 33->60 62 4 other IPs or domains 33->62 70 System process connects to network (likely due to code injection or exploit) 33->70 43 cmmon32.exe 33->43         started        46 chkdsk.exe 33->46         started        signatures12 process13 signatures14 90 Modifies the context of a thread in another process (thread injection) 43->90 92 Maps a DLL or memory area into another process 43->92 94 Tries to detect virtualization through RDTSC time measurements 43->94 48 cmd.exe 43->48         started        process15 process16 50 conhost.exe 48->50         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/5e4b300ac46a2d4719d60e261c479afc3ed6f4027afcb5f620a7bdf33d876336
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5e4b300ac46a2d4719d60e261c479afc3ed6f4027afcb5f620a7bdf33d876336/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2023-11-02 20:38:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lzftacweniwuogowbytbyr427q7nn5acpl6ll5rau667gpmhmm3a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0f6bd3f07adcb52e4e0a94d3fcc307b0780cdcd2e02ff3640474cd32303b898b
Formbook
247c8156cf06c5d9dec7d5fa0b158339110b556d41b0750bff34d36086554746
Formbook
3ac037f29c08bafccd3cf6c0e88cb933795ea25bf1e9415ed89e83574b7f2566
Formbook
64fdde31e18afd348c0727affafb347f0cd0203ec20268fbea9dcb4cc6d1caa9
Formbook
881bd1f6b3a38e6e6bf2c43c904b65beeba6a00a109319da26b360e12579ac30
Formbook
92a11969793b832918bec3384ffadd4c626a7888d97454f4790529566d462022
Formbook
982a9a52e532bbfe52941c4ab95c2899c1af75e9a3eee2b1977e3f49e8a3e71e
Formbook
ac00251b8ba5b7bd219bb23bb5134a11f1215d19aaa0915e5a00d7906906b19a
Formbook
f9a4e3002fdbcd93464f38fc49bebadbcc0417454c702e8298cf245fc751eee9
Formbook
+ 179 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ey16 rat spyware stealer trojan
Link:
https://tria.ge/reports/231102-zepm7sfc41/
Behaviour
Creates scheduled task(s)
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
5be1f28d9498131099c4989b821b1a289e9ee6475472309482db944fc99e2fab
MD5 hash:
c1d50dfc28e785fef6639c4619cea4af
SHA1 hash:
39ef93d0350a6edd0bbbeabf0ff361fbd913f8fe
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/2c8636c3-96fa-4738-b3d3-8096045ade02/
Parent samples :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 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/2c8636c3-96fa-4738-b3d3-8096045ade02/
SH256 hash:
76d99d8d30a8872d237c6ee62bead0d31beaa42da3820f1eaece9917422aa2e7
MD5 hash:
a0c7b52dd90f231a9c70ee95ffbe9c7c
SHA1 hash:
c55bcf23082d2ac789d7fb6ed5fc84a1666deef6
Link:
https://www.unpac.me/results/2c8636c3-96fa-4738-b3d3-8096045ade02/
SH256 hash:
2fc6e7a93e0fbed4e6ca48c98af13c7339db7bff52a1bdce39b1c83c8e453878
MD5 hash:
af053f732b77a9c89118b0e73d2dd656
SHA1 hash:
64b34d32f5dca8ec21ffeceebe6d6c9dfc562c4d
Link:
https://www.unpac.me/results/2c8636c3-96fa-4738-b3d3-8096045ade02/
SH256 hash:
5e4b300ac46a2d4719d60e261c479afc3ed6f4027afcb5f620a7bdf33d876336
MD5 hash:
3e65edfaa6f448ab7c3c1ce75c40035a
SHA1 hash:
54672f4dc2f975e1709357cecff80c9af47ae506
Link:
https://www.unpac.me/results/2c8636c3-96fa-4738-b3d3-8096045ade02/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5e4b300ac46a/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/5e4b300ac46a2d4719d60e261c479afc3ed6f4027afcb5f620a7bdf33d876336

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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 5e4b300ac46a2d4719d60e261c479afc3ed6f4027afcb5f620a7bdf33d876336

(this sample)

  
Delivery method
Distributed via e-mail attachment

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