MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 28ca5dea8ca246a61d262c54081363c158312e46634bcf4b886358ee08dee89f. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 28ca5dea8ca246a61d262c54081363c158312e46634bcf4b886358ee08dee89f
SHA3-384 hash: ce5ef058effcef10d52bfa3ff2e6a63b987412041d30eea6b9308175a43651f75fe2faa4b2ce0527bde35000740dcdd6
SHA1 hash: 600ef1580392c263677ef8ff77ab3e34abb371d6
MD5 hash: c02eddde0a1480dd0d1620e3c09c45de
humanhash: nine-wyoming-pasta-yankee
File name:c02eddde0a1480dd0d1620e3c09c45de
Download: download sample
Signature Formbook
Create hunting rule
File size:685'568 bytes
First seen:2022-08-16 18:47:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:pHM2Tg913M32g0S25mjlUwPz7QyfZI/7hDuBcFmki9bF:Dgr3TglU0zbfUhDuBuk
TLSH T18FE4CFEF2D9C5606CC7507B4ECAC12806BF2BDA23611E6DE6CA370D6C47239C4798E56
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
300
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c02eddde0a1480dd0d1620e3c09c45de
Verdict:
Malicious activity
Analysis date:
2022-08-16 18:50:53 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/a100e79d-2499-48d2-ac29-152d1b7d6c8c

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/299063/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1449.24824.4816.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62fbeb210dba786c1d3434f8/reports/97cc3735-5d21-442c-9f3e-3875eb753aef/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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5a759405-fa7f-4c6c-9fb7-00cdb47fff15
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1052518
Signature
C2 URLs / IPs found in malware configuration
Deletes itself after installation
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)
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
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 dnsIp2 2 Behavior Graph ID: 685032 Sample: DZf2lrZ956 Startdate: 16/08/2022 Architecture: WINDOWS Score: 100 31 www.balporobbae.store 2->31 33 ladi-dns-ssl-nlb-prod-4-5fac4e17b8b8295e.elb.ap-southeast-1.amazonaws.com 2->33 35 dns.ladipage.com 2->35 39 Snort IDS alert for network traffic 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 4 other signatures 2->45 9 DZf2lrZ956.exe 3 2->9         started        signatures3 process4 file5 23 C:\Users\user\AppData\...\DZf2lrZ956.exe.log, ASCII 9->23 dropped 55 Injects a PE file into a foreign processes 9->55 13 DZf2lrZ956.exe 9->13         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 13->57 59 Maps a DLL or memory area into another process 13->59 61 Sample uses process hollowing technique 13->61 63 Queues an APC in another process (thread injection) 13->63 16 explorer.exe 13->16 injected process9 dnsIp10 25 www.infozipworld.co.uk 81.17.18.197, 49750, 49751, 80 PLI-ASCH Switzerland 16->25 27 www.godrejplaza.com 165.3.36.16, 49719, 80 PEGTECHINCUS South Africa 16->27 29 www.k1zafl.com 164.88.111.15, 49748, 49749, 80 CLAYERLIMITED-AS-APClayerLimitedHK South Africa 16->29 37 System process connects to network (likely due to code injection or exploit) 16->37 20 systray.exe 13 16->20         started        signatures11 process12 signatures13 47 Tries to steal Mail credentials (via file / registry access) 20->47 49 Tries to harvest and steal browser information (history, passwords, etc) 20->49 51 Deletes itself after installation 20->51 53 2 other signatures 20->53
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/28ca5dea8ca246a61d262c54081363c158312e46634bcf4b886358ee08dee89f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-08-15 10:33:45 UTC
File Type:
PE (.Net Exe)
Extracted files:
43
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fdff32umujdkmhjgfrkaqe3dyfmdclsgmnf46s4imnmo4cg65cpq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/220816-xfrg3sffg6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
2d99ad9187e296aca5b09065d4674c5db84866235083895af198b32ded836185
MD5 hash:
113a9363b576a57630f6fa678b45603a
SHA1 hash:
ea874f8a2744b521cbe294c5dfd561387976749e
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/a0bf154e-7240-4bfe-9c5b-daa07017c7c3/
SH256 hash:
5f2887d2a0924efb2bca6daad07c9b17a72747b2ead153753c7708d146239b1f
MD5 hash:
94896839c3b0b8a74257c1390b10bcb8
SHA1 hash:
8eb1d613ce1e174f67402d95cea87683f9752ef5
Link:
https://www.unpac.me/results/a0bf154e-7240-4bfe-9c5b-daa07017c7c3/
SH256 hash:
0a2021c4ec16524828f2bce9428bbaae0fcc82adc4daed353c1989e894718196
MD5 hash:
e6d0aa01a00375bc8f3bf13d9a3d0876
SHA1 hash:
321ea3502d2d468808a84bf98e7cd77c30a2d66e
Link:
https://www.unpac.me/results/a0bf154e-7240-4bfe-9c5b-daa07017c7c3/
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
Link:
https://www.unpac.me/results/a0bf154e-7240-4bfe-9c5b-daa07017c7c3/
SH256 hash:
1b72d49a5e3db7a7a157408ac93240c7e0316ed7f6ddd10befc1af7e4bf7f68c
MD5 hash:
9c1436a35d82492bd09b6d65e4eaf94a
SHA1 hash:
2177711310aef753f821b881a4ee7f64f3bc9ef8
Link:
https://www.unpac.me/results/a0bf154e-7240-4bfe-9c5b-daa07017c7c3/
SH256 hash:
28ca5dea8ca246a61d262c54081363c158312e46634bcf4b886358ee08dee89f
MD5 hash:
c02eddde0a1480dd0d1620e3c09c45de
SHA1 hash:
600ef1580392c263677ef8ff77ab3e34abb371d6
Link:
https://www.unpac.me/results/a0bf154e-7240-4bfe-9c5b-daa07017c7c3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/28ca5dea8ca246a61d262c54081363c158312e46634bcf4b886358ee08dee89f

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: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.

Web download

Formbook

Executable exe 28ca5dea8ca246a61d262c54081363c158312e46634bcf4b886358ee08dee89f

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2259318/
Cape
Cape
https://www.capesandbox.com/analysis/299063/

Comments


Avatar
zbet commented on 2022-08-16 18:47:52 UTC

url : hxxp://208.67.105.179/rexzx.exe