MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e8b9fa0dce20f3c8f27f9b47db399991d6c19be8b50bac6187d06f20cadd1353. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e8b9fa0dce20f3c8f27f9b47db399991d6c19be8b50bac6187d06f20cadd1353
SHA3-384 hash: d91d133e01dd64b2b22eaebc4562eea6d674369b2549aa21f1a7bdb3a68a9d44f4fd2883547be9a6ce51af91495661e6
SHA1 hash: 044142645e4f23a73fdb7af0897174e78f1cb155
MD5 hash: ed3fb8f014e6dff481c56d788fe8a628
humanhash: kitten-robin-blossom-freddie
File name:scan-copy 202204.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:48'640 bytes
First seen:2022-04-21 09:22:10 UTC
Last seen:2022-04-21 09:58:03 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 384:fdVu5rcWH1VRCYffff9vQkulaieMwCKPkH2S3dd0hUADka68iptYcFmVc03K:lVAVpclMMwCKa3deVDlGtYcFmVc6K
Threatray 15'181 similar samples on MalwareBazaar
TLSH T10D23E71A29955229C5E47BF869B0619753327CE60124C28BBCFD7F29AF72313CDC226D
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)
File icon (PE):PE icon
dhash icon 174f4559191b1b13 (81 x AgentTesla, 68 x Formbook, 34 x SnakeKeylogger)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
259
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/265412/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.7104.11217.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Launching a process
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe obfuscated packed
Link:
https://www.filescan.io/uploads/62612278ffe27d511921d4cb/reports/21cea1e8-c213-438b-bb34-3b284ae28ffc/overview
Result
Verdict:
UNKNOWN
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/419be658-a5e0-497a-9608-2755f8a2ef03
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/980540
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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
Self deletion via cmd delete
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses netsh to modify the Windows network and firewall settings
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 613026 Sample: scan-copy 202204.exe Startdate: 21/04/2022 Architecture: WINDOWS Score: 100 38 www.throwpillowco.com 2->38 40 www.brickstoneinvestmentltd.com 2->40 42 2 other IPs or domains 2->42 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->64 66 4 other signatures 2->66 11 scan-copy 202204.exe 15 4 2->11         started        signatures3 process4 dnsIp5 50 apduemnb.gq 162.240.53.128, 443, 49723 UNIFIEDLAYER-AS-1US United States 11->50 36 C:\Users\user\...\scan-copy 202204.exe.log, ASCII 11->36 dropped 72 Injects a PE file into a foreign processes 11->72 16 scan-copy 202204.exe 11->16         started        19 cmd.exe 1 11->19         started        file6 signatures7 process8 signatures9 52 Modifies the context of a thread in another process (thread injection) 16->52 54 Maps a DLL or memory area into another process 16->54 56 Sample uses process hollowing technique 16->56 58 Queues an APC in another process (thread injection) 16->58 21 explorer.exe 16->21 injected 25 conhost.exe 19->25         started        27 timeout.exe 1 19->27         started        process10 dnsIp11 44 fogelsingleywedding.com 15.197.142.173, 49761, 80 TANDEMUS United States 21->44 46 www.yanhuige.com 21->46 48 2 other IPs or domains 21->48 68 System process connects to network (likely due to code injection or exploit) 21->68 70 Uses netsh to modify the Windows network and firewall settings 21->70 29 netsh.exe 21->29         started        signatures12 process13 signatures14 74 Self deletion via cmd delete 29->74 76 Modifies the context of a thread in another process (thread injection) 29->76 78 Maps a DLL or memory area into another process 29->78 80 Tries to detect virtualization through RDTSC time measurements 29->80 32 cmd.exe 1 29->32         started        process15 process16 34 conhost.exe 32->34         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e8b9fa0dce20f3c8f27f9b47db399991d6c19be8b50bac6187d06f20cadd1353/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-04-21 06:04:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5c47udooedz4r4t7tnd5womzshlmdg7iwuf2yymh2bxsbsw5cnjq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
3b10fd5bae448476e22cca9c4b9b12263c089af68ebfeb7159ddaf2f4ec3e7bc
Formbook
3f402617d9bbe740d49a4c0e0b17e4c704a11f04ad5c708a08c5a6988e7c181f
Formbook
6b765d70d97e0b3d8da0d871555d9d284bd08e85034ad45447bde1aadd2b2878
Formbook
7f2f847bde8c4df56662677d1df9c413b2328786469a6065b6793ad90198e35d
Formbook
dae8588b604d0728a1a1ecc77096197a34ed1b22ae7de69a53f39b59e6574ffd
Formbook
+ 15'171 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:s59h loader rat
Link:
https://tria.ge/reports/220421-lcgb6aeae8/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Blocklisted process makes network request
Xloader Payload
Xloader
Unpacked files
SH256 hash:
e8b9fa0dce20f3c8f27f9b47db399991d6c19be8b50bac6187d06f20cadd1353
MD5 hash:
ed3fb8f014e6dff481c56d788fe8a628
SHA1 hash:
044142645e4f23a73fdb7af0897174e78f1cb155
Link:
https://www.unpac.me/results/bb0765bc-0c03-4781-9303-0e9c2151ac21/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/e8b9fa0dce20f3c8f27f9b47db399991d6c19be8b50bac6187d06f20cadd1353

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:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
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.

Malspam

Formbook

Executable exe e8b9fa0dce20f3c8f27f9b47db399991d6c19be8b50bac6187d06f20cadd1353

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/265412/

Comments