MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 87c61e8ad5d2df24cc951473b77ec7ef6e2be9d37164ff829116c2cb73d2d8d7. 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 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 87c61e8ad5d2df24cc951473b77ec7ef6e2be9d37164ff829116c2cb73d2d8d7
SHA3-384 hash: 8a6d8cf1be16abaa25275f1a0ec4bc770390aee327b44c7d9204bd059d9df9fee8cd49f305b832f76e8068a99194104c
SHA1 hash: 1d01d39474b80975c511c27a795b715f025d89fb
MD5 hash: 819ac40d5e6ef3cd5d49467f76fc6de9
humanhash: cold-three-blossom-cardinal
File name:DETAILS AND INVOICE.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:347'753 bytes
First seen:2023-09-11 10:45:17 UTC
Last seen:2023-09-11 11:51:28 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:/Ya6CKW+ODAcZxa/vgc/KpguZJVZyFFMJsn8z3wTOv/Us94CqRUXYekdwApV2qLM:/Y0P+ODJxa/RF+T3NT3sB2XYe6trLFJo
Threatray 158 similar samples on MalwareBazaar
TLSH T1EF7422D877B0C5FBE9914D312A3DAAAD5EE0AD2318F9970F1369EE0A7C256404D0F712
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 b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter JAMESWT_WT
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
321
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
DETAILS AND INVOICE.exe
Verdict:
Malicious activity
Analysis date:
2023-09-11 10:47:25 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/d8c0ba10-17c0-4fb2-9e69-cac35bb599e0

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/447913/
Detection(s):
SecuriteInfo.com.FileRepMalware.6528.29043.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Sending a custom TCP request
Unauthorized injection to a recently created process by context flags manipulation
Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control lolbin masquerade overlay packed shell32
Link:
https://www.filescan.io/uploads/64feefeb503973c35698388d/reports/6e567996-a6d4-4646-a179-f2691221e09b/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/87c61e8ad5d2df24cc951473b77ec7ef6e2be9d37164ff829116c2cb73d2d8d7
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/3d69db18-5508-4403-976a-306a51a7fe13
Result
Threat name:
FormBook, NSISDropper
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1307237
Signature
Antivirus detection for URL or domain
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Initial sample is a PE file and has a suspicious name
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 submitted file
Queues an APC in another process (thread injection)
Sample has a suspicious name (potential lure to open the executable)
Sample uses process hollowing technique
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)
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1307237 Sample: DETAILS_AND_INVOICE.exe Startdate: 11/09/2023 Architecture: WINDOWS Score: 100 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus detection for URL or domain 2->46 48 Multi AV Scanner detection for submitted file 2->48 50 5 other signatures 2->50 10 DETAILS_AND_INVOICE.exe 18 2->10         started        process3 file4 30 C:\Users\user\AppData\Local\...\uwdfjuqf.exe, PE32 10->30 dropped 13 uwdfjuqf.exe 10->13         started        process5 signatures6 62 Machine Learning detection for dropped file 13->62 64 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 13->64 66 Maps a DLL or memory area into another process 13->66 16 uwdfjuqf.exe 13->16         started        process7 signatures8 38 Maps a DLL or memory area into another process 16->38 40 Sample uses process hollowing technique 16->40 42 Queues an APC in another process (thread injection) 16->42 19 XGZFQUrfjAfiEGTdpoGMvU.exe 16->19 injected process9 process10 21 msdt.exe 13 19->21         started        signatures11 52 Tries to steal Mail credentials (via file / registry access) 21->52 54 Tries to harvest and steal browser information (history, passwords, etc) 21->54 56 Modifies the context of a thread in another process (thread injection) 21->56 58 Maps a DLL or memory area into another process 21->58 24 explorer.exe 3 1 21->24 injected 28 XGZFQUrfjAfiEGTdpoGMvU.exe 21->28 injected process12 dnsIp13 32 www.nobelstone.online 84.201.186.241, 49767, 49768, 49769 YANDEXCLOUDRU Russian Federation 24->32 34 www.innovativefewsustra.com 199.21.76.77, 49747, 49748, 49749 VOXEL-DOT-NETUS United States 24->34 36 11 other IPs or domains 24->36 60 System process connects to network (likely due to code injection or exploit) 24->60 signatures14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/87c61e8ad5d2df24cc951473b77ec7ef6e2be9d37164ff829116c2cb73d2d8d7/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-09-11 09:10:39 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 23 (86.96%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=q7db5cwv2lpsjtevcrz3o7wh55xcx2otofsp7aurc3bmw46s3dlq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0694c6c0a52d6281f7ba9acc9de0549be7fd5bdb35e857609fc7adbfcda8c848
Formbook
1b29005d1fa110dfb5b924c879e64d7d4cce8af163f9e6853e4bbda2c298acf0
Formbook
1efb08a82cb31f0627287c5b4d31725dec2f9d5062cea032a454a9f1d953df5e
Formbook
4d698a32de4877e432bf6d6af790d86746adb3bd352844451a7505fb3d8b3492
Formbook
5453ab6ad1bde2f5286311d91550037266ec90d9b032c61969ef0196241746c9
Formbook
8249e88d3b270dba037eae0a0308f828f87e6a5c2c61678ef4943293cbe26fb3
Formbook
f6f14e614582f94e97f29dc96c69fa61767fd2f6bf5798ad96a7e3c34f189db7
Formbook
+ 148 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230911-mtys7sfd6s/
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:
099c6503830e38f3ba05186f94a8fba91ecd0776c480ffdd94b604aa72ce400b
MD5 hash:
c088dcd855c0c2d97133a6077a05358f
SHA1 hash:
21a3d0804b961929c31191252ec1c5e4dfedc036
Detections:
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/e9748a63-d90a-446f-90fb-cb05efd05544/
SH256 hash:
958fc3dc4aa087f5be62ad196b2e035a1d129da08ec4e0fa56c6c2fd4451d0e5
MD5 hash:
f00afce759a84c9f4bec31dba11712b9
SHA1 hash:
648075cbd73534b55e7ea24672b1fcd55daa8bd0
Link:
https://www.unpac.me/results/e9748a63-d90a-446f-90fb-cb05efd05544/
SH256 hash:
8875ace216d72f93f0b7113841b4d18fe3429707baf4ceb714bb9edf6aa674d5
MD5 hash:
fa281eaa439c713a5d042a60c7592425
SHA1 hash:
c4f48584fb5130d764de801002fe66a1bf9d72e2
Link:
https://www.unpac.me/results/e9748a63-d90a-446f-90fb-cb05efd05544/
SH256 hash:
87c61e8ad5d2df24cc951473b77ec7ef6e2be9d37164ff829116c2cb73d2d8d7
MD5 hash:
819ac40d5e6ef3cd5d49467f76fc6de9
SHA1 hash:
1d01d39474b80975c511c27a795b715f025d89fb
Link:
https://www.unpac.me/results/e9748a63-d90a-446f-90fb-cb05efd05544/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/87c61e8ad5d2/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/87c61e8ad5d2df24cc951473b77ec7ef6e2be9d37164ff829116c2cb73d2d8d7

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:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
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.

Cape
Cape
https://www.capesandbox.com/analysis/447913/

Comments