MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5023ffb96d6d21805c48f275dbb208a1671ab8dd7f3c170ca4dba1ac08c075f9. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
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SHA256 hash: 5023ffb96d6d21805c48f275dbb208a1671ab8dd7f3c170ca4dba1ac08c075f9
SHA3-384 hash: 87d30d0d9fcb81e309b44fe2300a583f69c78f341165a7d170723817afe9773b6dd3216c885a3c2e41ea2c939983811b
SHA1 hash: e3deb21646a87850cc07bc6fdf7d1642274ed5c3
MD5 hash: f2b81b42990cee987ce0168b14abc4c4
humanhash: mountain-georgia-equal-early
File name:(0998 R1) ST PO1805140.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:865'280 bytes
First seen:2021-08-06 06:21:32 UTC
Last seen:2021-08-06 06:25:45 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:lifB33Y4Qxfz1naYIiAPdIScj/0PHXf+ajRGsatQjGfnVbKd6aKWiZG8kqMK2t2Z:lipKaYIiR03GqQsat0Gf5O/iYhMNjD
TLSH T14705F125B255C810C3BE5632CDDF40188BF8BD093A63DF2BBD9A32694A533A395475CE
dhash icon 96ceec79f0ec8e96 (5 x Formbook, 5 x AgentTesla, 2 x SnakeKeylogger)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
324
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
(0998 R1) ST PO1805140.exe
Verdict:
Malicious activity
Analysis date:
2021-08-06 06:23:11 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/082fc995-8ef9-4e60-9464-15f889f5be96

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/176901/
Detection(s):
Sanesecurity.Rogue.0hr.20210806-0308.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
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/2cc1ff78-38e9-4480-8f74-32a2c443cbad
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/828107
Signature
.NET source code contains method to dynamically call methods (often used by packers)
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 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 uses process hollowing technique
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 460537 Sample: (0998 R1) ST PO1805140.exe Startdate: 06/08/2021 Architecture: WINDOWS Score: 100 29 www.desarrollosolucionesnavarro.com 2->29 31 www.blockchainhub360.com 2->31 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 9 other signatures 2->49 10 (0998 R1) ST PO1805140.exe 3 2->10         started        signatures3 process4 file5 27 C:\Users\...\(0998 R1) ST PO1805140.exe.log, ASCII 10->27 dropped 51 Injects a PE file into a foreign processes 10->51 14 (0998 R1) ST PO1805140.exe 10->14         started        signatures6 process7 signatures8 53 Modifies the context of a thread in another process (thread injection) 14->53 55 Maps a DLL or memory area into another process 14->55 57 Sample uses process hollowing technique 14->57 59 Queues an APC in another process (thread injection) 14->59 17 mstsc.exe 14->17         started        20 explorer.exe 14->20 injected process9 dnsIp10 35 Modifies the context of a thread in another process (thread injection) 17->35 37 Maps a DLL or memory area into another process 17->37 39 Tries to detect virtualization through RDTSC time measurements 17->39 23 cmd.exe 1 17->23         started        33 www.desarrollosolucionesnavarro.com 52.70.19.153, 80 AMAZON-AESUS United States 20->33 41 System process connects to network (likely due to code injection or exploit) 20->41 signatures11 process12 process13 25 conhost.exe 23->25         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/5023ffb96d6d21805c48f275dbb208a1671ab8dd7f3c170ca4dba1ac08c075f9/
Threat name:
ByteCode-MSIL.Spyware.Noon
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Status:
Malicious
First seen:
2021-08-06 01:25:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
40
AV detection:
8 of 46 (17.39%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kar77olnnuqyaxci6j25xmqiuftrvog5p46bodfe3oq2ycgaox4q._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:ipa8 loader rat suricata
Link:
https://tria.ge/reports/210806-655ra153ca/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Blocklisted process makes network request
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.desarrollosolucionesnavarro.com/ipa8/
Unpacked files
SH256 hash:
f983da48ac2fd562b4a60f65633c6d5783e1779df39ce325b5e1c86e4030cc75
MD5 hash:
1e2eda83043bcf638d404c49e1a88b00
SHA1 hash:
e91f775f6d57d0ccb81e54cdf77a304d3684a153
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/ce316511-a725-4d35-b7e8-64d021cfc31e/
Parent samples :
eebf2b5d558c3f39f52538f7d3175c732f38351dca734eb37bf975796dcc086a
d064e13de302104e85c1fbc8b177bc3b17ecf1dc0063ff1865d825b219d9f11d
ee929bc954e0c858ca17de372ed70ec02343b1c48ab6631c07c60550a8da7b4d
4c1b38391ab198fb0e2c7050a8951e65efbc818991fb710f6deeb2c76a54c734
5023ffb96d6d21805c48f275dbb208a1671ab8dd7f3c170ca4dba1ac08c075f9
21819dfbcb4f450bc55706acc971444f6f3452604dc0c19a0b04f2e21732987b
1f842cf49a031ad6112edf767d3022d47391b39fd3bda6e7c456f5815f8bf742
b61e941f98080f431ec35c165703e2d18957fcc2b386286eeaa7a274ded8e0b3
3edf6811850efc722b39737bf3623a42127e728f0c32a0a6ab7c66044838d307
2c365b6985fd96e0f9596e0e17370ef537d786473e490dfb144ade8fedc5f2ce
e6d6ba31c6a493196ef6147ee975e41970f069ce9abd2b114c115891be4d37e0
SH256 hash:
aed00f82f1772e5a403cce9c1349202c8371e67ed9ef19a33cac0bf2a411f3c1
MD5 hash:
c273f926e2a29bd62cc8f27b569a0b2a
SHA1 hash:
e08d302cab3e11d776599a6b0537207fce6f9c51
Link:
https://www.unpac.me/results/ce316511-a725-4d35-b7e8-64d021cfc31e/
SH256 hash:
3361705be40813af61519562cc845d250489515ab1d717fc83935d368e0185d8
MD5 hash:
323cf6b1cef485f68e56d4606316f45b
SHA1 hash:
b29576e554845db9d19d861a16e4408bb9d7e2ac
Link:
https://www.unpac.me/results/ce316511-a725-4d35-b7e8-64d021cfc31e/
SH256 hash:
5023ffb96d6d21805c48f275dbb208a1671ab8dd7f3c170ca4dba1ac08c075f9
MD5 hash:
f2b81b42990cee987ce0168b14abc4c4
SHA1 hash:
e3deb21646a87850cc07bc6fdf7d1642274ed5c3
Link:
https://www.unpac.me/results/ce316511-a725-4d35-b7e8-64d021cfc31e/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/5023ffb96d6d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.75
Link:
https://yomi.yoroi.company/submissions/5023ffb96d6d21805c48f275dbb208a1671ab8dd7f3c170ca4dba1ac08c075f9

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
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Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
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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 5023ffb96d6d21805c48f275dbb208a1671ab8dd7f3c170ca4dba1ac08c075f9

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/176901/

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