MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d26606a4aeaa4fa8274dfc63d1262b3cedb3afbdf37e96139099632865ab8981. 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 4 File information Comments
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SHA256 hash: d26606a4aeaa4fa8274dfc63d1262b3cedb3afbdf37e96139099632865ab8981
SHA3-384 hash: bab630432be0d773bff451ade715bf6ef1735cdc338bf266f42797d991b36f51f7d2b7da4de2d96d753fc453bf0c62dd
SHA1 hash: 77a287fc76c3b819137002f62dbb8fd9803a0674
MD5 hash: 35c9c0fb76810fe705c364b062c41e8b
humanhash: william-beryllium-fillet-mars
File name:Temmuz 2021 Ekstreniz.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:972'800 bytes
First seen:2021-08-18 07:05:31 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:WwDc9F3nC0Py3gAhOEJbjJEKvOzUrhxHpQ+LAhyzDuGKENYLVm+SticNDL9QBG:izoPHS8LnuGz6L4BY
Threatray 8'032 similar samples on MalwareBazaar
TLSH T10D2570392BB82567D165D23EABD18617F04096DF3411AA5764CA0FA7B302AC2F7C723D
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
137
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Temmuz 2021 Ekstreniz.exe
Verdict:
Malicious activity
Analysis date:
2021-08-18 07:08:15 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/e875923d-bb75-4755-997b-22d28d6b0749

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/180216/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.998-1.UNOFFICIAL
Create hunting rule

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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3388a4f3-8a38-4d41-8ff7-71fbcd942900
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/834912
Signature
.NET source code contains very large strings
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: 467343 Sample: Temmuz 2021 Ekstreniz.exe Startdate: 18/08/2021 Architecture: WINDOWS Score: 100 36 www.waaaghstore.com 2->36 38 www.spowerschool.com 2->38 40 4 other IPs or domains 2->40 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 9 other signatures 2->56 11 Temmuz 2021 Ekstreniz.exe 3 2->11         started        signatures3 process4 file5 34 C:\Users\...\Temmuz 2021 Ekstreniz.exe.log, ASCII 11->34 dropped 64 Injects a PE file into a foreign processes 11->64 15 Temmuz 2021 Ekstreniz.exe 11->15         started        18 Temmuz 2021 Ekstreniz.exe 11->18         started        20 Temmuz 2021 Ekstreniz.exe 11->20         started        signatures6 process7 signatures8 66 Modifies the context of a thread in another process (thread injection) 15->66 68 Maps a DLL or memory area into another process 15->68 70 Sample uses process hollowing technique 15->70 72 Queues an APC in another process (thread injection) 15->72 22 explorer.exe 15->22 injected process9 dnsIp10 42 www.le-houillier.com 156.235.110.11, 80 VPSQUANUS Seychelles 22->42 44 azure-52.184.30.29.bakbitionb.com 52.184.30.29, 49720, 80 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 22->44 46 8 other IPs or domains 22->46 58 System process connects to network (likely due to code injection or exploit) 22->58 26 msiexec.exe 12 22->26         started        signatures11 process12 dnsIp13 48 www.le-houillier.com 26->48 60 Modifies the context of a thread in another process (thread injection) 26->60 62 Maps a DLL or memory area into another process 26->62 30 cmd.exe 1 26->30         started        signatures14 process15 process16 32 conhost.exe 30->32         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d26606a4aeaa4fa8274dfc63d1262b3cedb3afbdf37e96139099632865ab8981/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-17 11:58:45 UTC
AV detection:
15 of 28 (53.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=2jtanjfovjh2qj2n7rr5cjrlhtw3hl556n7jme4qtfrsqznlrgaq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1f09c219e2b54ddba8bf8cd48e71dc1bfa0d84c0b2ffff71eb08329c797f6243
Formbook
32bebc90eccf1fc02fa1f409233269a76243731db1192a827d31d3d1dab2f6da
Formbook
450178f7975019437a0e145934d9f99c1c4cc7be3b4ab8ab30454460447199a4
Formbook
4d8a482a05fd92a0186ad2c0f3e77a86740f5c5c7850de4f5ed93e03ed640026
Formbook
4d8eaf37de32a6ff36c965b6e616e2085e2d1bd46e75344ca1fea59178c19f15
Formbook
8d56e8c41d8094151017ec3cecc40b5aa78edb0d955d39f3c68c3d211fbcb65a
Formbook
9d2688c35966c4ba68ca34f8274f34e6bc5e0e62e1d40ce4a3073149e841d8b4
Formbook
aaa40ee2b509dc2b3a2f12f62d70565c85eb9aa13a7efd43bb86cfba0a3e1a88
Formbook
+ 8'022 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:ushb loader rat suricata
Link:
https://tria.ge/reports/210818-kkt8ayy2sa/
Behaviour
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
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.ossotasarim.com/ushb/
Unpacked files
SH256 hash:
07acbfc2c0c4df4588c2f37e7d7e33b4c8e28484901d7e7c8fbbef7dd71cb0bd
MD5 hash:
c9a8323e43ec51f8319c94a628b026d3
SHA1 hash:
11154e36d757d87ff53467682a9ed0b579539165
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/37e1b85d-b105-414b-ba47-2c88bb60de1e/
Parent samples :
aaa40ee2b509dc2b3a2f12f62d70565c85eb9aa13a7efd43bb86cfba0a3e1a88
8d56e8c41d8094151017ec3cecc40b5aa78edb0d955d39f3c68c3d211fbcb65a
32bebc90eccf1fc02fa1f409233269a76243731db1192a827d31d3d1dab2f6da
d26606a4aeaa4fa8274dfc63d1262b3cedb3afbdf37e96139099632865ab8981
SH256 hash:
6912e4bedd1288f116e968f0a79d9797f6d6bd24d45a5f10c52e20f9d33b8c61
MD5 hash:
03bde4a82ad64c0f314985232fbca3fa
SHA1 hash:
e8d0b6339e94192eaaca32c812f914e60576dca6
Link:
https://www.unpac.me/results/37e1b85d-b105-414b-ba47-2c88bb60de1e/
SH256 hash:
69134974c41da96cac7cddedf165b38259b4f2f9ae079a42e9abedacf76dce3d
MD5 hash:
4e9d2a82f6bf29534bebd30837fff131
SHA1 hash:
0b63a5229e351031b22a6ae277dca48d1feb2d7c
Link:
https://www.unpac.me/results/37e1b85d-b105-414b-ba47-2c88bb60de1e/
SH256 hash:
6f78c405af266c426641dc34318e1d552f34a9b760060019b9b3a8875a383cac
MD5 hash:
76e82346e4ad464e1bf90304780dfb5b
SHA1 hash:
dd99eab9a9461a4d3a75256355f84879deafa0ab
Link:
https://www.unpac.me/results/37e1b85d-b105-414b-ba47-2c88bb60de1e/
SH256 hash:
d26606a4aeaa4fa8274dfc63d1262b3cedb3afbdf37e96139099632865ab8981
MD5 hash:
35c9c0fb76810fe705c364b062c41e8b
SHA1 hash:
77a287fc76c3b819137002f62dbb8fd9803a0674
Link:
https://www.unpac.me/results/37e1b85d-b105-414b-ba47-2c88bb60de1e/
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/d26606a4aeaa4fa8274dfc63d1262b3cedb3afbdf37e96139099632865ab8981

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_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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 d26606a4aeaa4fa8274dfc63d1262b3cedb3afbdf37e96139099632865ab8981

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/180216/

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