MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4e2f37d4228e78faa1f34121ee934f58e1a9862ad6f183edf4c24e08cda20363. 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

Quakbot

Vendor detections: 9

Maldoc score: 5

Intelligence 9 IOCs YARA 10 File information Comments

SHA256 hash:	4e2f37d4228e78faa1f34121ee934f58e1a9862ad6f183edf4c24e08cda20363
SHA3-384 hash:	f1c8d9fc3f06b3aa0b4eeb5b2f2ed155d27ef32766f0d366f24c3776ecb391c5c64ca46855960bd29e934f3f9a2d1056
SHA1 hash:	945f507232ddbe940e09ac69a4e8592aa55590ed
MD5 hash:	e758a4b1340fd50274edefd581cd8c52
humanhash:	paris-hamper-pasta-magazine
File name:	Document_1495694596-Copy.xls
Download:	download sample
Signature	Quakbot Create hunting rule
File size:	44'544 bytes
First seen:	2020-12-08 14:11:42 UTC
Last seen:	2020-12-08 15:56:56 UTC
File type:	xls
MIME type:	application/vnd.ms-excel
ssdeep	768:hDvaS7uDphYHceXVhca+fMHLtyeGxcbB8OUM+VDvW+u7DY4t++UrUgIVjHzq0LhH:Vb7uDphYHceXVhca+fMHLtyeGxcl8OUw
TLSH	AB13E7AFF755980AE9590739C0F356A6332BFC458FA7478B2748F30A2FB51804A13657
Reporter	malware_traffic
Tags:	macros Qakbot Quakbot xls

Office OLE Information

This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE id

Maldoc score: 5

Application name is Microsoft Excel

Office document is in OLE format

OLE dump

MalwareBazaar was able to identify 3 sections in this file using oledump:

Section ID	Section size	Section name
1	4096 bytes	DocumentSummaryInformation
2	4096 bytes	SummaryInformation
3	34332 bytes	Workbook

OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

Type	Keyword	Description
AutoExec	Auto_Open	Runs when the Excel Workbook is opened
Suspicious	EXEC	May run an executable file or a system
Suspicious	Hex Strings	Hex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence

File Origin

# of uploads :

# of downloads :

226

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

Document_1495694596-Copy.xls

Verdict:

Malicious activity

Analysis date:

2020-12-08 14:20:38 UTC

Tags:

macros

Link:

https://app.any.run/tasks/86e7090b-5818-49ca-9853-247492a077c6

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection(s):

TwinWave.EvilDoc.DOCXSTRGOOD.AOEX4.BITSNEEDEDFOR.DLLREGISTERSERVER.200327.UNOFFICIAL

TwinWave.EvilDoc.DOCXSTRGOOD.AOEX4.BITSNEEDEDFOR.DLLREGISTERSERVER.200416.UNOFFICIAL

TwinWave.EvilDoc.Excel4Macro.HiddenSheetDLWAKEUP.20200310.UNOFFICIAL

TwinWave.EvilDoc.HiddenSheetExcel4LureRecognizer.20200915.UNOFFICIAL

TwinWave.EvilDoc.QakbotTheDuck.20200928.UNOFFICIAL

TwinWave.EvilDoc.Excel4MagicPalmersArcade.20201207.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a file in the %temp% directory

Launching the default Windows debugger (dwwin.exe)

Launching a process by exploiting the app vulnerability

Result

Verdict:

Malicious

File Type:

Legacy Office File

Link:

https://app.docguard.net/4e2f37d4228e78faa1f34121ee934f58e1a9862ad6f183edf4c24e08cda20363/results/dashboard

Document image

Image:

Download PNG

Result

Verdict:

MALICIOUS

Details

Autostarting Excel Macro Sheet

Excel contains Macrosheet logic that will trigger automatically upon document open.

Document With Minimal Content

Document contains less than 1 kilobyte of semantic information.

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/4e2f37d4228e78faa1f34121ee934f58e1a9862ad6f183edf4c24e08cda20363/

Threat name:

Document-Office.Backdoor.Quakbot

Status:

Malicious

First seen:

2020-12-08 14:12:07 UTC

AV detection:

5 of 48 (10.42%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=jyxtpvbcrz4pviptieq65e2pldq2tbrk23yyh3puyjhartncanrq._file

Result

Malware family:

qakbot

Score:

10/10

Tags:

family:qakbot botnet:abc109 campaign:1607419963 banker macro stealer trojan

Link:

https://tria.ge/reports/201208-dpmqj8ztg6/

Behaviour

Creates scheduled task(s)

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Checks processor information in registry

Process spawned suspicious child process

Loads dropped DLL

Process spawned unexpected child process

Qakbot/Qbot

Malware Config

C2 Extraction:

37.106.117.51:443
176.58.133.136:2222
59.103.76.230:443
195.97.101.40:443
2.89.122.180:993
110.159.80.243:443
95.77.223.148:443
79.129.252.62:2222
182.161.6.57:3389
5.193.175.76:2078
41.39.134.183:443
95.76.27.6:443
74.124.191.6:443
184.21.136.237:995
185.105.131.233:443
2.50.2.216:443
24.206.4.203:2222
5.70.178.62:443
2.7.202.106:2222
92.154.83.96:2078
93.113.177.152:443
151.27.88.197:443
160.3.184.253:443
89.136.226.44:995
78.97.110.47:443
92.154.83.96:2087
78.63.226.32:443
217.162.149.212:443
92.154.83.96:1194
149.28.101.90:8443
197.45.110.165:995
86.121.166.72:2222
80.195.103.146:2222
2.50.0.105:995
2.51.240.250:995
197.36.100.188:995
31.215.68.98:2222
217.128.117.218:2222
197.135.49.121:443
5.13.84.186:995
122.59.40.31:995
62.38.114.12:2222
81.133.234.36:2222
79.115.171.106:2222
176.181.247.197:443
82.79.35.131:443
72.66.47.70:443
173.21.10.71:2222
196.151.252.84:443
81.214.126.173:2222
83.110.13.182:2222
45.118.65.34:443
172.87.157.235:3389
79.113.119.125:443
184.98.97.227:995
86.121.3.80:443
2.49.219.254:22
78.154.31.238:443
94.69.242.254:2222
105.198.236.101:443
197.51.82.115:995
89.3.198.238:443
41.97.168.84:443
196.204.207.111:443
41.205.16.89:443
73.32.115.251:443
161.199.180.159:443
197.161.154.132:443
102.185.13.89:443
85.186.122.190:443
185.163.221.77:2222
108.30.125.94:443
105.198.236.99:443
83.196.50.197:2222
149.28.101.90:443
96.225.88.23:443
47.146.34.236:443
63.155.29.193:995
24.95.61.62:443
32.212.117.188:443
73.166.10.38:50003
87.218.53.206:2222
71.163.223.144:443
5.193.106.230:2078
184.97.145.239:443
188.50.187.45:995
151.33.226.156:443
78.101.158.1:61201
173.18.126.193:2222
65.131.41.96:995
178.87.18.221:443
99.244.210.10:443
110.142.205.182:443
83.110.250.71:995
41.228.242.14:443
37.106.7.7:443
164.155.230.98:443
193.83.25.177:995
109.154.193.21:2222
67.141.11.98:443
120.150.34.178:443
205.178.7.90:443
37.116.152.122:2078
78.96.199.79:443
96.40.175.33:443
2.90.124.155:995
162.157.19.33:2222
37.210.255.225:443
175.137.119.141:443
24.179.13.119:443
120.150.218.241:443
83.110.151.105:443
83.114.243.80:2222
2.50.56.81:443
47.21.192.182:2222
90.53.103.229:2222
77.211.30.202:995
93.146.133.102:2222
96.21.251.127:2222
58.179.21.147:995
98.124.76.187:443
72.36.59.46:2222
144.202.38.185:443
149.28.98.196:995
149.28.98.196:443
149.28.101.90:995
149.28.98.196:2222
86.99.134.235:2222
174.87.65.179:443
207.246.75.201:443
45.63.107.192:2222
96.241.66.126:443
149.28.99.97:2222
45.32.155.12:443
149.28.99.97:443
45.63.107.192:995
105.101.182.178:443
144.202.38.185:2222
144.202.38.185:995
45.32.162.253:443
94.52.160.116:443
199.247.16.80:443
83.110.226.174:443
72.182.209.97:2222
37.21.231.245:995
2.132.32.23:995
202.141.244.118:993
85.132.36.111:2222
45.250.69.150:443
111.95.212.237:2222

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Trojan

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/4e2f37d4228e78faa1f34121ee934f58e1a9862ad6f183edf4c24e08cda20363

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:	Email_stealer_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	Email in files like avemaria

Rule name:	Excel_Hidden_Macro_Sheet Create hunting rule

Rule name:	IPPort_combo_mem Create hunting rule
Author:	James_inthe_box
Description:	IP and port combo

Rule name:	QakBot Create hunting rule
Author:	kevoreilly
Description:	QakBot Payload

Rule name:	Select_from_enumeration Create hunting rule
Author:	James_inthe_box
Description:	IP and port combo

Rule name:	SharedStrings Create hunting rule
Author:	Katie Kleemola
Description:	Internal names found in LURK0/CCTV0 samples

Rule name:	SUSP_EnableContent_String_Gen Create hunting rule
Author:	Florian Roth
Description:	Detects suspicious string that asks to enable active content in Office Doc
Reference:	Internal Research

Rule name:	SUSP_Excel4Macro_AutoOpen Create hunting rule
Author:	John Lambert @JohnLaTwC
Description:	Detects Excel4 macro use with auto open / close

Rule name:	UAC_bypass_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	UAC bypass in files like avemaria

File information

The table below shows additional information about this malware sample such as delivery method and external references.

No further information available

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