MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 57ac59a69f7b5366e58b18100717297d5ae1570252bf5f3bf3158d2de57e8002. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 57ac59a69f7b5366e58b18100717297d5ae1570252bf5f3bf3158d2de57e8002
SHA3-384 hash: c128306d83c535abd15bc3de646138020305f6056bb2fe9b9961724489e24047d32f7470bbb702c3dd4bab2626f4fe74
SHA1 hash: ade19e6305e3342033a550a6e2b7d84f426b7be8
MD5 hash: 53ae53a71c080b54af95ff0b759d0326
humanhash: stream-carpet-island-hotel
File name:DOCUMENTS.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:882'688 bytes
First seen:2022-06-16 08:22:37 UTC
Last seen:2022-06-20 13:37:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:gO3Qsjw82yg157hrGCYkoFYVsmPfR7RoKHP5SqJSlvVO6HTa1grFCKy3rwpROvSy:JuRdGdkLsmx7FilvginF1Dlc
TLSH T1A415013EE9D79D63C749463AC4D30D18136E924AA3A3F79726005AD64A017DA8C4FBCF
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
6
# of downloads :
264
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/280626/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.7710.1319.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
clipbanker packed
Link:
https://www.filescan.io/uploads/62aae868c07f2e38a14d0d7f/reports/a5976d87-6732-421d-b4d0-a31e307934b5/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/ca61ebd4-bbc8-4a37-b45a-1fd755b844f0
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1014379
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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 dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
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 detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 646871 Sample: DOCUMENTS.exe Startdate: 16/06/2022 Architecture: WINDOWS Score: 100 56 www.cronos-dapp.com 2->56 58 www.bellezadehoy.online 2->58 60 bellezadehoy.online 2->60 76 Snort IDS alert for network traffic 2->76 78 Malicious sample detected (through community Yara rule) 2->78 80 Antivirus detection for URL or domain 2->80 82 10 other signatures 2->82 11 DOCUMENTS.exe 7 2->11         started        signatures3 process4 file5 48 C:\Users\user\AppData\...\KBlJCcCTSbgZRo.exe, PE32 11->48 dropped 50 C:\...\KBlJCcCTSbgZRo.exe:Zone.Identifier, ASCII 11->50 dropped 52 C:\Users\user\AppData\Local\...\tmp2AAF.tmp, XML 11->52 dropped 54 C:\Users\user\AppData\...\DOCUMENTS.exe.log, ASCII 11->54 dropped 90 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 11->90 92 Uses schtasks.exe or at.exe to add and modify task schedules 11->92 94 Adds a directory exclusion to Windows Defender 11->94 96 2 other signatures 11->96 15 DOCUMENTS.exe 11->15         started        18 powershell.exe 24 11->18         started        20 powershell.exe 25 11->20         started        22 schtasks.exe 1 11->22         started        signatures6 process7 signatures8 98 Modifies the context of a thread in another process (thread injection) 15->98 100 Maps a DLL or memory area into another process 15->100 102 Sample uses process hollowing technique 15->102 104 Queues an APC in another process (thread injection) 15->104 24 explorer.exe 15->24 injected 28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        32 conhost.exe 22->32         started        process9 dnsIp10 62 www.machslicedbread.xyz 103.224.182.210, 49786, 49787, 49788 TRELLIAN-AS-APTrellianPtyLimitedAU Australia 24->62 64 www.timinis23.com 199.192.23.166, 49783, 80 NAMECHEAP-NETUS United States 24->64 66 3 other IPs or domains 24->66 86 System process connects to network (likely due to code injection or exploit) 24->86 88 Performs DNS queries to domains with low reputation 24->88 34 chkdsk.exe 24->34         started        37 autofmt.exe 24->37         started        signatures11 process12 signatures13 68 Tries to steal Mail credentials (via file / registry access) 34->68 70 Tries to harvest and steal browser information (history, passwords, etc) 34->70 72 Modifies the context of a thread in another process (thread injection) 34->72 74 2 other signatures 34->74 39 cmd.exe 34->39         started        42 cmd.exe 34->42         started        process14 signatures15 84 Tries to harvest and steal browser information (history, passwords, etc) 39->84 44 conhost.exe 39->44         started        46 conhost.exe 42->46         started        process16
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/57ac59a69f7b5366e58b18100717297d5ae1570252bf5f3bf3158d2de57e8002/
Threat name:
ByteCode-MSIL.Backdoor.Androm
Create hunting rule
Status:
Malicious
First seen:
2022-06-16 05:04:40 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
19 of 25 (76.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=k6wftju7pnjwnzmldaiaofzjpvnocvyckk7v6o7tcwgs3zl6qaba._file
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:sdzp evasion loader rat suricata
Link:
https://tria.ge/reports/220616-j944dadce3/
Behaviour
Creates scheduled task(s)
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Checks computer location settings
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
e4710a90da6adf400b9ea4ad5cbc83c6b1e3cdecca54e07d23dc3ae654f08f6c
MD5 hash:
bac7c0c4ef98d948e08b7744c02f4b91
SHA1 hash:
1a674cf5f946fc603bf20d311658bbdff7db206d
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/5a58f639-ab23-456c-bb83-a5e9e1b76bec/
Parent samples :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 hash:
6e932ef3199c4eed964fbc23e26deda334dcff96977e2047ffa5433e16f11228
MD5 hash:
0ecdabfa27267f7dddb0ab285800a9a1
SHA1 hash:
fc99f3941e9231fe847e540c1b8a6ef82278801f
Link:
https://www.unpac.me/results/5a58f639-ab23-456c-bb83-a5e9e1b76bec/
SH256 hash:
345eaec8d3522908159d6b7381b7d6fb294bb74cc378b5a853d4fc29cb3b2f4e
MD5 hash:
7ff90987d20c8afc846906a24219cb9d
SHA1 hash:
c36334ca78b184c4f0b28f216489e9e2d611463f
Link:
https://www.unpac.me/results/5a58f639-ab23-456c-bb83-a5e9e1b76bec/
SH256 hash:
84238dc32dc2c72716d7233f509b43a45617e2a24ca07eecda58ae37a704b90b
MD5 hash:
1d6115ad56b1707c8afa1a65f22afc96
SHA1 hash:
58cbf25298e84cf9d91da78ae370ac5ddbb2c3fd
Link:
https://www.unpac.me/results/5a58f639-ab23-456c-bb83-a5e9e1b76bec/
SH256 hash:
57ac59a69f7b5366e58b18100717297d5ae1570252bf5f3bf3158d2de57e8002
MD5 hash:
53ae53a71c080b54af95ff0b759d0326
SHA1 hash:
ade19e6305e3342033a550a6e2b7d84f426b7be8
Link:
https://www.unpac.me/results/5a58f639-ab23-456c-bb83-a5e9e1b76bec/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/57ac59a69f7b/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/57ac59a69f7b5366e58b18100717297d5ae1570252bf5f3bf3158d2de57e8002

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:exploit_any_poppopret
Create hunting rule
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
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

zip 806dbf441a080a3b1ba915e55cd88f3887d92d9752bca61cb5b63e4b6cf55ab2

Formbook

Executable exe 57ac59a69f7b5366e58b18100717297d5ae1570252bf5f3bf3158d2de57e8002

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/280626/
  
Dropped by
SHA256 806dbf441a080a3b1ba915e55cd88f3887d92d9752bca61cb5b63e4b6cf55ab2
  
Dropped by
MD5 bc5e4b73d5987d226de0859dc5b7c57e
  
Dropped by
SHA256 d0bffdfb64bb091f32342ae7a71627f06e95db885c6b9d387038af6e30a83f46
  
Dropped by
MD5 339156b2d41e4ade482cc7df0dee5947

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