MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 6b848d5aba554f4766ff8389ff321a1cd67b51936ec3568ed83af7039e3d7415. 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
SilentBuilder
Vendor detections: 8
Maldoc score: 7
| SHA256 hash: | 6b848d5aba554f4766ff8389ff321a1cd67b51936ec3568ed83af7039e3d7415 |
|---|---|
| SHA3-384 hash: | a273be772ac0ac0dbadb28d41666f527835d47d57bc4331ec31abd206caeadc125f5ceca7dfff03fb1919ff93fad48a5 |
| SHA1 hash: | e2f3cb9155dcbc1f312753bd3ff5fb6d311e1627 |
| MD5 hash: | b2ab8991ae44147dce421a2cf915e2a5 |
| humanhash: | three-hamper-bravo-steak |
| File name: | 3640811638-12072020.xls |
| Download: | download sample |
| Signature | SilentBuilder |
| File size: | 44'032 bytes |
| First seen: | 2020-12-07 19:09:00 UTC |
| Last seen: | 2020-12-07 20:38:27 UTC |
| File type: |  xls |
| MIME type: | application/vnd.ms-excel |
| ssdeep | 768:jvaS7uDphYHceXVhca+fMHLtyeGxcbB8OUM+VDdW+u7DJktaUrUgIViJc8qmcIcn:jb7uDphYHceXVhca+fMHLtyeGxcl8OUe |
| TLSH | 1B13E5AFB755980AE919073980F35666736BFC418FA7478B3788B30B2FB52C04A13657 |
| Reporter |  ffforward |
| Tags: | Qakbot qbot Quakbot SilentBuilder 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: 7 |
| 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 | 34155 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) |
| Suspicious | Base64 Strings | Base64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all) |
Intelligence
File Origin
# of uploads :
2
# of downloads :
315
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
6b848d5aba554f4766ff8389ff321a1cd67b51936ec3568ed83af7039e3d7415.xls
Verdict:
Malicious activity
Analysis date:
2020-12-08 11:18:26 UTC
Tags:
macros loader
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.DOCXSTRGOOD.AOEX4.BITSNEEDEDFOR.DLLREGISTERSERVER.200416.UNOFFICIAL
TwinWave.EvilDoc.Excel4Macro.HiddenSheetDLWAKEUP.20200310.UNOFFICIAL
TwinWave.EvilDoc.HiddenSheetExcel4LureRecognizer.20200915.UNOFFICIAL
TwinWave.EvilDoc.QakbotTheDuck.20200928.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
Document image
Image:
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(s):
Suspicious file
Result
Malware family:
qakbot
Score:
10/10
Tags:
family:qakbot botnet:abc108m campaign:1607356318 banker macro stealer trojan
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:
92.59.35.196:2083
2.89.122.180:995
78.181.19.134:443
5.193.175.76:2078
24.139.72.117:443
62.38.114.12:2222
2.51.240.250:995
174.62.13.151:443
189.210.115.207:443
71.197.126.250:443
187.7.236.197:995
187.149.126.53:443
96.247.180.108:443
174.55.197.4:443
187.190.250.175:443
24.206.4.203:2222
72.36.11.22:443
197.135.240.243:443
216.137.142.200:2222
160.3.184.253:443
186.189.208.238:443
84.232.252.202:2222
106.51.85.162:443
120.151.95.167:443
74.124.191.6:443
108.46.145.30:443
75.136.40.155:443
184.21.136.237:995
68.186.192.69:443
185.105.131.233:443
185.138.134.114:443
24.43.22.220:993
187.192.151.3:443
94.69.242.254:2222
141.193.83.107:443
187.213.105.132:995
93.113.177.152:443
151.27.88.197:443
97.69.160.4:2222
77.30.79.74:443
172.87.134.226:443
94.52.160.116:443
161.199.180.159:443
87.27.110.90:2222
86.162.13.35:2222
67.82.244.199:2222
185.163.221.77:2222
94.59.236.155:995
84.117.176.32:443
71.182.142.63:443
196.151.252.84:443
67.177.196.177:0
197.51.82.115:995
72.240.200.181:2222
105.198.236.101:443
81.214.126.173:2222
67.237.68.126:2222
185.125.151.138:443
197.45.110.165:995
149.28.101.90:443
73.32.115.251:443
196.204.207.111:443
109.115.125.81:50000
185.246.9.69:995
78.96.199.79:443
172.87.157.235:3389
72.36.59.46:2222
47.146.34.236:443
24.27.82.216:2222
24.95.61.62:443
73.55.254.225:443
24.179.13.119:443
32.212.117.188:443
87.218.53.206:2222
63.155.29.193:995
71.163.223.144:443
184.97.145.239:443
176.45.218.26:995
24.201.61.153:2078
151.33.226.156:443
78.101.158.1:61201
173.18.126.193:2222
90.101.62.189:2222
65.131.41.96:995
178.87.18.221:443
99.244.210.10:443
83.202.68.220:2222
80.195.103.146:2222
180.233.150.134:443
96.225.88.23:443
96.41.93.96:443
110.142.205.182:443
41.228.242.14:443
37.106.7.7:443
47.44.217.98:443
174.87.65.179:443
202.185.199.172:443
85.204.189.105:443
90.53.103.229:2222
86.122.248.164:2222
86.99.134.235:2222
164.155.230.98:443
208.99.100.129:443
216.201.162.158:443
193.83.25.177:995
80.106.85.24:2222
24.178.196.158:443
109.154.193.21:2222
172.78.30.215:443
67.141.11.98:443
80.14.22.234:2222
73.51.245.231:995
37.116.152.122:2078
96.40.175.33:443
2.90.124.155:995
70.45.219.126:443
193.248.154.174:2222
162.157.19.33:2222
189.252.62.238:995
109.205.204.229:2222
37.210.255.225:8443
78.132.96.100:6881
5.15.54.40:443
208.93.202.41:443
120.150.218.241:995
41.39.134.183:443
120.150.218.241:443
116.240.78.45:995
184.179.14.130:22
109.209.94.165:2222
109.93.245.93:995
199.116.241.147:443
83.114.243.80:2222
82.12.157.95:995
2.50.56.81:443
47.21.192.182:2222
78.97.207.104:443
98.240.24.57:443
77.211.30.202:995
184.98.97.227:995
79.113.119.125:443
93.146.133.102:2222
174.76.21.134:443
190.85.91.154:443
85.132.36.111:2222
96.21.251.127:2222
58.179.21.147:995
98.124.76.187:443
86.121.3.80:443
78.97.110.47:443
2.89.122.180:995
78.181.19.134:443
5.193.175.76:2078
24.139.72.117:443
62.38.114.12:2222
2.51.240.250:995
174.62.13.151:443
189.210.115.207:443
71.197.126.250:443
187.7.236.197:995
187.149.126.53:443
96.247.180.108:443
174.55.197.4:443
187.190.250.175:443
24.206.4.203:2222
72.36.11.22:443
197.135.240.243:443
216.137.142.200:2222
160.3.184.253:443
186.189.208.238:443
84.232.252.202:2222
106.51.85.162:443
120.151.95.167:443
74.124.191.6:443
108.46.145.30:443
75.136.40.155:443
184.21.136.237:995
68.186.192.69:443
185.105.131.233:443
185.138.134.114:443
24.43.22.220:993
187.192.151.3:443
94.69.242.254:2222
141.193.83.107:443
187.213.105.132:995
93.113.177.152:443
151.27.88.197:443
97.69.160.4:2222
77.30.79.74:443
172.87.134.226:443
94.52.160.116:443
161.199.180.159:443
87.27.110.90:2222
86.162.13.35:2222
67.82.244.199:2222
185.163.221.77:2222
94.59.236.155:995
84.117.176.32:443
71.182.142.63:443
196.151.252.84:443
67.177.196.177:0
197.51.82.115:995
72.240.200.181:2222
105.198.236.101:443
81.214.126.173:2222
67.237.68.126:2222
185.125.151.138:443
197.45.110.165:995
149.28.101.90:443
73.32.115.251:443
196.204.207.111:443
109.115.125.81:50000
185.246.9.69:995
78.96.199.79:443
172.87.157.235:3389
72.36.59.46:2222
47.146.34.236:443
24.27.82.216:2222
24.95.61.62:443
73.55.254.225:443
24.179.13.119:443
32.212.117.188:443
87.218.53.206:2222
63.155.29.193:995
71.163.223.144:443
184.97.145.239:443
176.45.218.26:995
24.201.61.153:2078
151.33.226.156:443
78.101.158.1:61201
173.18.126.193:2222
90.101.62.189:2222
65.131.41.96:995
178.87.18.221:443
99.244.210.10:443
83.202.68.220:2222
80.195.103.146:2222
180.233.150.134:443
96.225.88.23:443
96.41.93.96:443
110.142.205.182:443
41.228.242.14:443
37.106.7.7:443
47.44.217.98:443
174.87.65.179:443
202.185.199.172:443
85.204.189.105:443
90.53.103.229:2222
86.122.248.164:2222
86.99.134.235:2222
164.155.230.98:443
208.99.100.129:443
216.201.162.158:443
193.83.25.177:995
80.106.85.24:2222
24.178.196.158:443
109.154.193.21:2222
172.78.30.215:443
67.141.11.98:443
80.14.22.234:2222
73.51.245.231:995
37.116.152.122:2078
96.40.175.33:443
2.90.124.155:995
70.45.219.126:443
193.248.154.174:2222
162.157.19.33:2222
189.252.62.238:995
109.205.204.229:2222
37.210.255.225:8443
78.132.96.100:6881
5.15.54.40:443
208.93.202.41:443
120.150.218.241:995
41.39.134.183:443
120.150.218.241:443
116.240.78.45:995
184.179.14.130:22
109.209.94.165:2222
109.93.245.93:995
199.116.241.147:443
83.114.243.80:2222
82.12.157.95:995
2.50.56.81:443
47.21.192.182:2222
78.97.207.104:443
98.240.24.57:443
77.211.30.202:995
184.98.97.227:995
79.113.119.125:443
93.146.133.102:2222
174.76.21.134:443
190.85.91.154:443
85.132.36.111:2222
96.21.251.127:2222
58.179.21.147:995
98.124.76.187:443
86.121.3.80:443
78.97.110.47:443
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
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 |
|---|---|
| Author: | James_inthe_box |
| Description: | Email in files like avemaria |
| Rule name: | Excel_Hidden_Macro_Sheet |
|---|
| Rule name: | IPPort_combo_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | IP and port combo |
| Rule name: | Select_from_enumeration |
|---|---|
| Author: | James_inthe_box |
| Description: | IP and port combo |
| Rule name: | SharedStrings |
|---|---|
| Author: | Katie Kleemola |
| Description: | Internal names found in LURK0/CCTV0 samples |
| Rule name: | SUSP_EnableContent_String_Gen |
|---|---|
| Author: | Florian Roth |
| Description: | Detects suspicious string that asks to enable active content in Office Doc |
| Reference: | Internal Research |
| Rule name: | SUSP_Excel4Macro_AutoOpen |
|---|---|
| Author: | John Lambert @JohnLaTwC |
| Description: | Detects Excel4 macro use with auto open / close |
| Rule name: | UAC_bypass_bin_mem |
|---|---|
| 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.
Malspam
Delivery method
Distributed via e-mail attachment
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.