MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 03877e2ca8962961d8cf797402da2bccb8fc6afe876cfa4e327ef29363a9b4ba. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 03877e2ca8962961d8cf797402da2bccb8fc6afe876cfa4e327ef29363a9b4ba
SHA3-384 hash: 8b0026350bdafbdd38776c4b3bfe5c7cc66d17f3c0f2df7d9d993dd08e7185f3d9ff2c5b3fdad3bdcf19548a5882c419
SHA1 hash: 2f2265adcdb6fc0447874d6d42812b96176bdece
MD5 hash: db5720f68986ec46322b4d2452b133a6
humanhash: nuts-charlie-mobile-utah
File name:invoice.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:625'664 bytes
First seen:2022-10-18 04:17:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:5cg0XY7M2GcboSGUmHEDqbGjeMQ8+U1OaMQDEXdI9WaUxrpvb:5IY4QjjmkDqbkRV+ks
TLSH T186D4ADAD325076DFCC17CA36D9941C74A664BD66030BD60FA49329ADBE1D89FCE201F2
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
233
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/321190/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.62869137.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Searching for the window
Unauthorized injection to a recently created process
Creating a file
Launching a process
Searching for synchronization primitives
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/634e28fbb5f60e72b8c73076/reports/ed3f9163-9f39-45b9-bf6f-2af9d3ba71b9/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1defcc2b-6e55-40e7-8177-70306bc314af
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1092410
Signature
C2 URLs / IPs found in malware configuration
Deletes itself after installation
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)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 725030 Sample: invoice.exe Startdate: 18/10/2022 Architecture: WINDOWS Score: 100 42 Snort IDS alert for network traffic 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 6 other signatures 2->48 7 invoice.exe 3 2->7         started        process3 file4 22 C:\Users\user\AppData\...\invoice.exe.log, ASCII 7->22 dropped 50 Injects a PE file into a foreign processes 7->50 11 invoice.exe 7->11         started        14 invoice.exe 7->14         started        signatures5 process6 signatures7 52 Modifies the context of a thread in another process (thread injection) 11->52 54 Maps a DLL or memory area into another process 11->54 56 Sample uses process hollowing technique 11->56 58 Queues an APC in another process (thread injection) 11->58 16 rundll32.exe 13 11->16         started        19 explorer.exe 11->19 injected process8 dnsIp9 30 Tries to steal Mail credentials (via file / registry access) 16->30 32 Tries to harvest and steal browser information (history, passwords, etc) 16->32 34 Deletes itself after installation 16->34 40 2 other signatures 16->40 24 www.heyyosemite.com 91.195.240.94, 49756, 49757, 49758 SEDO-ASDE Germany 19->24 26 www.rockermanmarketing.online 46.30.211.38, 49744, 49745, 49746 ONECOMDK Denmark 19->26 28 18 other IPs or domains 19->28 36 System process connects to network (likely due to code injection or exploit) 19->36 38 Performs DNS queries to domains with low reputation 19->38 signatures10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/03877e2ca8962961d8cf797402da2bccb8fc6afe876cfa4e327ef29363a9b4ba/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-10-17 02:25:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
22
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=aodx4lfisyuwdwgppf2afwrlzs4py2x6q5wputrsp3zjgy5jws5a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:dj6o rat spyware stealer trojan
Link:
https://tria.ge/reports/221018-ewybfseffl/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Formbook
Gathering data
Unpacked files
SH256 hash:
2864947a97315bfb19dec7cdbb106d315d053ac8a28c4047dc4ae2545504f449
MD5 hash:
606d9eefd0cfa76b39517dc0c96c0824
SHA1 hash:
e02de6a8d4822dfa1358d30d08f77d1c02268b9b
Detections:
XLoader
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/25001629-35e2-401a-8e24-2367493ef422/
Parent samples :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 hash:
35b2604527cdb330c5b0c20e961bb8b88cb1a3eff0de70246be9b62b85fdd59d
MD5 hash:
8f8dcca4fabf1c13ad59f55dc145c7e8
SHA1 hash:
108a75e830a13b250a127dd45bb041dc1392fdba
Link:
https://www.unpac.me/results/25001629-35e2-401a-8e24-2367493ef422/
SH256 hash:
2a2a1fe75e4dcb337f660bd0c05628d42eb29c53dd5bb2f50d542199c817ac20
MD5 hash:
af1bc8b09a8221a1061f54e9b3b359c9
SHA1 hash:
db40aba3faa3ede7567c9bbb956520fb7bace033
Link:
https://www.unpac.me/results/25001629-35e2-401a-8e24-2367493ef422/
SH256 hash:
338c66d492bb780aa60d8a412264df60f10eba33f1c52643fa9dd9fbef82f5db
MD5 hash:
fc90f9283c75625fcba0e875e8a301cc
SHA1 hash:
8fcf2ff8f8fbdcc4ecc51fd24f07b92efeba35d0
Link:
https://www.unpac.me/results/25001629-35e2-401a-8e24-2367493ef422/
SH256 hash:
4f80ddfe49b270f801ab44aa899153bbe2a0fb93abed0f9fc992f74ff6ab4fde
MD5 hash:
f4ba8570299eabf8fe2d02cc1dc0606a
SHA1 hash:
5d7add32313074f5a1e9b4ab379298dee8b6217e
Link:
https://www.unpac.me/results/25001629-35e2-401a-8e24-2367493ef422/
SH256 hash:
3f759c53ce3dfddba48ac058f8867340225f33e835afb1859d418192e958898e
MD5 hash:
3d815016d6b315bbfa00e7159be46b1e
SHA1 hash:
0aa8bba4620230217f481e644be754351a6f8724
Link:
https://www.unpac.me/results/25001629-35e2-401a-8e24-2367493ef422/
SH256 hash:
33be7b9878cf2e933a7bec0d11d7539bb0114eb78805497f0df0dee75c2db943
MD5 hash:
ffcd2e33fed79c448e065c63067fa837
SHA1 hash:
1cd60715ad230216d55ebfba0d23f6dd1061ed0f
Detections:
XLoader
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/25001629-35e2-401a-8e24-2367493ef422/
SH256 hash:
f04fa7dbbbdb4a356f641e1a5d6a31f2bc684a43159effbf274a058b871c8ef3
MD5 hash:
dc36edebd6567c29e430c06e2b353b0d
SHA1 hash:
8f26ae8e65d82ad9514b8be02fb46a2034dd31a8
Link:
https://www.unpac.me/results/25001629-35e2-401a-8e24-2367493ef422/
SH256 hash:
03877e2ca8962961d8cf797402da2bccb8fc6afe876cfa4e327ef29363a9b4ba
MD5 hash:
db5720f68986ec46322b4d2452b133a6
SHA1 hash:
2f2265adcdb6fc0447874d6d42812b96176bdece
Link:
https://www.unpac.me/results/25001629-35e2-401a-8e24-2367493ef422/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.71
Link:
https://yomi.yoroi.company/submissions/03877e2ca8962961d8cf797402da2bccb8fc6afe876cfa4e327ef29363a9b4ba

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:pe_imphash
Create hunting rule
Rule name:QbotStuff
Create hunting rule
Author:anonymous
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 03877e2ca8962961d8cf797402da2bccb8fc6afe876cfa4e327ef29363a9b4ba

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/321190/

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