MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ab6a807d4829fe823bbb8a198a688c820d4c2c33a51fb08a42938cb28a246b14. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ab6a807d4829fe823bbb8a198a688c820d4c2c33a51fb08a42938cb28a246b14
SHA3-384 hash: 471f81bdeb8f134c25fac891ecda03ed827b090a962b0a78c3a4c3e2bac26f409a6af05a4c23e42d45102b97f3f94bcc
SHA1 hash: 233db1b7a228ab8f4838212ec9ef33b10ba38200
MD5 hash: e8b4ae0b2fd94b489780ebd6c9f5bd94
humanhash: carolina-zulu-thirteen-emma
File name:Stock List.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'199'616 bytes
First seen:2021-11-15 14:05:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'642 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 24576:nqmFt+sYWDgUKZ1UrqpxO/kyOZQo8Q4+0Sk:qm+sZDghCfkyOSDA
Threatray 7'405 similar samples on MalwareBazaar
TLSH T1F7455A033A55C911D1AA2237CCEF44246BFCBC82BD93DB2A79AA33BC55363B608455DD
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
138
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/205945/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Launching a process
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
DNS request
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6192694c3edf00a722d56932/reports/a502b689-cfa7-4ce8-af2a-6d1a58380919/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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/84c3048d-5208-48d3-83a8-ce817aa315d2
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/889515
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Found malware configuration
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 dropped file
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
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
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
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 signatures2 2 Behavior Graph ID: 521982 Sample: Stock List.exe Startdate: 15/11/2021 Architecture: WINDOWS Score: 100 50 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 12 other signatures 2->56 10 Stock List.exe 7 2->10         started        process3 file4 38 C:\Users\user\AppData\...\yHtqXQDFJZRcNJ.exe, PE32 10->38 dropped 40 C:\Users\user\AppData\Local\...\tmp6F5B.tmp, XML 10->40 dropped 42 C:\Users\user\AppData\...\Stock List.exe.log, ASCII 10->42 dropped 60 Adds a directory exclusion to Windows Defender 10->60 62 Injects a PE file into a foreign processes 10->62 14 Stock List.exe 10->14         started        17 powershell.exe 25 10->17         started        19 schtasks.exe 1 10->19         started        signatures5 process6 signatures7 72 Modifies the context of a thread in another process (thread injection) 14->72 74 Maps a DLL or memory area into another process 14->74 76 Sample uses process hollowing technique 14->76 78 Queues an APC in another process (thread injection) 14->78 21 explorer.exe 14->21 injected 25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        process8 dnsIp9 44 www.xhwipbr.com 154.208.85.198, 80 DXTL-HKDXTLTseungKwanOServiceHK Seychelles 21->44 46 www.autoales.com 209.99.40.222, 49828, 80 CONFLUENCE-NETWORK-INCVG United States 21->46 48 3 other IPs or domains 21->48 58 System process connects to network (likely due to code injection or exploit) 21->58 29 raserver.exe 21->29         started        32 autofmt.exe 21->32         started        signatures10 process11 signatures12 64 Self deletion via cmd delete 29->64 66 Modifies the context of a thread in another process (thread injection) 29->66 68 Maps a DLL or memory area into another process 29->68 70 Tries to detect virtualization through RDTSC time measurements 29->70 34 cmd.exe 1 29->34         started        process13 process14 36 conhost.exe 34->36         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ab6a807d4829fe823bbb8a198a688c820d4c2c33a51fb08a42938cb28a246b14/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-15 11:00:39 UTC
AV detection:
20 of 44 (45.45%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vnvia7kifh7ieo53rimyu2emqiguylbtuup3bcscsoglfcrenmka._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
23724b1ab4a3186b1ec832a4fe192fed5622aa61ec64d3c7c90a6bdc79b68f49
Formbook
36fa0c2bd4ebc419638530f5ed45d4efe1a25a0703167f88bb3b9dbe6404109e
Formbook
7e764e53424c41b68593b184364b18e22eeb77199532e6dd9b7d968cc7f4014d
Formbook
9b21ddd12ab442996f40e9eaa498cd1a3c17c9f157ca3f173ab742f94bbca33b
Formbook
9c3265fd4f143e5d919decf7878f414461a951da3cf83e20f6fafc5c82626b8d
Formbook
bfda36d3ebc1fb857cb54351080065ade276dc8f3a4123642c733f9b46ff89c0
Formbook
d62c650fa302858696ef4a99776b1b7f95174bd3d73f341ffb5faa4e161d665b
Formbook
ec5f4dcc08f293334a46654b279444c6c128608c6af38a4139a5b28503954219
Formbook
fff77f3852a66a56bad4ec5bc1c1bc2afb0b08b8ea65393384a1ee6917dcb355
Formbook
+ 7'395 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:riho loader rat
Link:
https://tria.ge/reports/211115-redxpsafb5/
Behaviour
Creates scheduled task(s)
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.teamsterslocal553.com/riho/
Unpacked files
SH256 hash:
adc5cfe7c646308360deeb922a237b860c0ebeae19bba890dd055428b95c1224
MD5 hash:
5b303165e3459a9a5d8d5bf3fcd8a699
SHA1 hash:
7183e84a8734c1396733f64c33523b17f1665b6f
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/45a7fd6b-ea21-4a0d-a290-6d7db120baea/
Parent samples :
fff77f3852a66a56bad4ec5bc1c1bc2afb0b08b8ea65393384a1ee6917dcb355
ab6a807d4829fe823bbb8a198a688c820d4c2c33a51fb08a42938cb28a246b14
SH256 hash:
86fe170cc6dd3a576807c1192a06ead68bf210f9ccd14f1a81d4f44c2dbcc25f
MD5 hash:
bf5c170790a9378101dbc312303925e3
SHA1 hash:
bddaf21c02ba5cec7c4dfd1b1f289e23714a8ba8
Link:
https://www.unpac.me/results/45a7fd6b-ea21-4a0d-a290-6d7db120baea/
SH256 hash:
889e6b52ea6b3646798553c1353be55705a63c877454717f00770effa00e50f0
MD5 hash:
1e073409ad490c01e9982eddaad44c88
SHA1 hash:
989929efdc71e3609e1dbe4c1608c2f44f15e99e
Link:
https://www.unpac.me/results/45a7fd6b-ea21-4a0d-a290-6d7db120baea/
SH256 hash:
ab6a807d4829fe823bbb8a198a688c820d4c2c33a51fb08a42938cb28a246b14
MD5 hash:
e8b4ae0b2fd94b489780ebd6c9f5bd94
SHA1 hash:
233db1b7a228ab8f4838212ec9ef33b10ba38200
Link:
https://www.unpac.me/results/45a7fd6b-ea21-4a0d-a290-6d7db120baea/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/ab6a807d4829/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/ab6a807d4829fe823bbb8a198a688c820d4c2c33a51fb08a42938cb28a246b14

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: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 ab6a807d4829fe823bbb8a198a688c820d4c2c33a51fb08a42938cb28a246b14

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/205945/

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