Analysis
-
max time kernel
150s -
max time network
134s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
18-01-2021 18:46
Static task
static1
Behavioral task
behavioral1
Sample
IMG_78011.doc
Resource
win7v20201028
Behavioral task
behavioral2
Sample
IMG_78011.doc
Resource
win10v20201028
General
-
Target
IMG_78011.doc
-
Size
378KB
-
MD5
8f0e485e9f232c84f78c011167c38f28
-
SHA1
8eac77339b0ab53717dee58e81bc6bc532521737
-
SHA256
a37120959c7a4cd33bebb1d205848e82db6676948da5e2ae7ce313547486da6e
-
SHA512
7d002e4ebfbd92e9eb9b60e1791b44f5097629811d17798a04130ce9ecae75ffdd3d90eb064a1185f2c443927b4aae6c53385505360d8082576a5cf0a34a6ec2
Malware Config
Signatures
-
Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
-
Snake Keylogger Payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/628-37-0x0000000000400000-0x0000000000468000-memory.dmp family_snakekeylogger behavioral1/memory/628-38-0x00000000004638FE-mapping.dmp family_snakekeylogger behavioral1/memory/628-41-0x0000000000400000-0x0000000000468000-memory.dmp family_snakekeylogger -
Blocklisted process makes network request 2 IoCs
Processes:
EQNEDT32.EXEflow pid process 7 1756 EQNEDT32.EXE 9 1756 EQNEDT32.EXE -
Executes dropped EXE 3 IoCs
Processes:
69577.exejra.exeInstallUtil.exepid process 1072 69577.exe 1940 jra.exe 628 InstallUtil.exe -
Loads dropped DLL 3 IoCs
Processes:
EQNEDT32.EXE69577.exejra.exepid process 1756 EQNEDT32.EXE 1072 69577.exe 1940 jra.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
-
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
-
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
reg.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run reg.exe Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\fxyt = "C:\\Users\\Admin\\jra.exe" reg.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 14 freegeoip.app 10 checkip.dyndns.org 13 freegeoip.app -
Suspicious use of SetThreadContext 1 IoCs
Processes:
jra.exedescription pid process target process PID 1940 set thread context of 628 1940 jra.exe InstallUtil.exe -
Drops file in Windows directory 1 IoCs
Processes:
WINWORD.EXEdescription ioc process File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE -
Office loads VBA resources, possible macro or embedded object present
-
Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
-
Processes:
WINWORD.EXEdescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" WINWORD.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote WINWORD.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" WINWORD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
WINWORD.EXEpid process 804 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 14 IoCs
Processes:
69577.exejra.exeInstallUtil.exepid process 1072 69577.exe 1072 69577.exe 1072 69577.exe 1072 69577.exe 1072 69577.exe 1940 jra.exe 1940 jra.exe 628 InstallUtil.exe 628 InstallUtil.exe 628 InstallUtil.exe 628 InstallUtil.exe 628 InstallUtil.exe 628 InstallUtil.exe 628 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
69577.exejra.exeInstallUtil.exedescription pid process Token: SeDebugPrivilege 1072 69577.exe Token: SeDebugPrivilege 1940 jra.exe Token: SeDebugPrivilege 628 InstallUtil.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
WINWORD.EXEpid process 804 WINWORD.EXE 804 WINWORD.EXE -
Suspicious use of WriteProcessMemory 32 IoCs
Processes:
WINWORD.EXEEQNEDT32.EXE69577.execmd.exejra.exedescription pid process target process PID 804 wrote to memory of 1172 804 WINWORD.EXE splwow64.exe PID 804 wrote to memory of 1172 804 WINWORD.EXE splwow64.exe PID 804 wrote to memory of 1172 804 WINWORD.EXE splwow64.exe PID 804 wrote to memory of 1172 804 WINWORD.EXE splwow64.exe PID 1756 wrote to memory of 1072 1756 EQNEDT32.EXE 69577.exe PID 1756 wrote to memory of 1072 1756 EQNEDT32.EXE 69577.exe PID 1756 wrote to memory of 1072 1756 EQNEDT32.EXE 69577.exe PID 1756 wrote to memory of 1072 1756 EQNEDT32.EXE 69577.exe PID 1072 wrote to memory of 576 1072 69577.exe cmd.exe PID 1072 wrote to memory of 576 1072 69577.exe cmd.exe PID 1072 wrote to memory of 576 1072 69577.exe cmd.exe PID 1072 wrote to memory of 576 1072 69577.exe cmd.exe PID 576 wrote to memory of 1304 576 cmd.exe reg.exe PID 576 wrote to memory of 1304 576 cmd.exe reg.exe PID 576 wrote to memory of 1304 576 cmd.exe reg.exe PID 576 wrote to memory of 1304 576 cmd.exe reg.exe PID 1072 wrote to memory of 1940 1072 69577.exe jra.exe PID 1072 wrote to memory of 1940 1072 69577.exe jra.exe PID 1072 wrote to memory of 1940 1072 69577.exe jra.exe PID 1072 wrote to memory of 1940 1072 69577.exe jra.exe PID 1940 wrote to memory of 628 1940 jra.exe InstallUtil.exe PID 1940 wrote to memory of 628 1940 jra.exe InstallUtil.exe PID 1940 wrote to memory of 628 1940 jra.exe InstallUtil.exe PID 1940 wrote to memory of 628 1940 jra.exe InstallUtil.exe PID 1940 wrote to memory of 628 1940 jra.exe InstallUtil.exe PID 1940 wrote to memory of 628 1940 jra.exe InstallUtil.exe PID 1940 wrote to memory of 628 1940 jra.exe InstallUtil.exe PID 1940 wrote to memory of 628 1940 jra.exe InstallUtil.exe PID 1940 wrote to memory of 628 1940 jra.exe InstallUtil.exe PID 1940 wrote to memory of 628 1940 jra.exe InstallUtil.exe PID 1940 wrote to memory of 628 1940 jra.exe InstallUtil.exe PID 1940 wrote to memory of 628 1940 jra.exe InstallUtil.exe
Processes
-
C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\IMG_78011.doc"1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:804 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:1172
-
C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:1756 -
C:\Users\Public\69577.exe"C:\Users\Public\69577.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1072 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "fxyt" /t REG_SZ /d "C:\Users\Admin\jra.exe"3⤵
- Suspicious use of WriteProcessMemory
PID:576 -
C:\Windows\SysWOW64\reg.exeREG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "fxyt" /t REG_SZ /d "C:\Users\Admin\jra.exe"4⤵
- Adds Run key to start application
PID:1304 -
C:\Users\Admin\jra.exe"C:\Users\Admin\jra.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1940 -
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:628
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
-
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
-
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\U4LP0D2R.txtMD5
64097c47bd07b1d1d6a440e87d7c3db8
SHA18f8bd7a343509d6974d7d082bd5cc95f887213e4
SHA256cc86d756ac6a042ae1b331554a181de457e4831c218b90ba038eb204153ea59e
SHA512959eace0030456d8673c6b33bcf524a6ca480f1de4bc27eab3a082d60f9798e317792979c532450fb780ee47138aca18656623880124bc50e82b97acc0414504
-
C:\Users\Admin\jra.exeMD5
fb5363e0cae049792ad0705042daaaa4
SHA1ecac4b6890de7ce53acdd794bf42cfb2019ad76e
SHA256e0568a1b9f5de82ff98e314fcd590ee101e0189c2b62052a38f512c5d50e5920
SHA512753ea44b69b17e03ae7e6b3ec5f2e304472c5a80da855b5ff8592d9fa0466aa590c6ba1eedf9ffe62560c6324e22f527d6e0ac810991d3df0c4a255bc5fdcaec
-
C:\Users\Admin\jra.exeMD5
fb5363e0cae049792ad0705042daaaa4
SHA1ecac4b6890de7ce53acdd794bf42cfb2019ad76e
SHA256e0568a1b9f5de82ff98e314fcd590ee101e0189c2b62052a38f512c5d50e5920
SHA512753ea44b69b17e03ae7e6b3ec5f2e304472c5a80da855b5ff8592d9fa0466aa590c6ba1eedf9ffe62560c6324e22f527d6e0ac810991d3df0c4a255bc5fdcaec
-
C:\Users\Public\69577.exeMD5
fb5363e0cae049792ad0705042daaaa4
SHA1ecac4b6890de7ce53acdd794bf42cfb2019ad76e
SHA256e0568a1b9f5de82ff98e314fcd590ee101e0189c2b62052a38f512c5d50e5920
SHA512753ea44b69b17e03ae7e6b3ec5f2e304472c5a80da855b5ff8592d9fa0466aa590c6ba1eedf9ffe62560c6324e22f527d6e0ac810991d3df0c4a255bc5fdcaec
-
C:\Users\Public\69577.exeMD5
fb5363e0cae049792ad0705042daaaa4
SHA1ecac4b6890de7ce53acdd794bf42cfb2019ad76e
SHA256e0568a1b9f5de82ff98e314fcd590ee101e0189c2b62052a38f512c5d50e5920
SHA512753ea44b69b17e03ae7e6b3ec5f2e304472c5a80da855b5ff8592d9fa0466aa590c6ba1eedf9ffe62560c6324e22f527d6e0ac810991d3df0c4a255bc5fdcaec
-
\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
-
\Users\Admin\jra.exeMD5
fb5363e0cae049792ad0705042daaaa4
SHA1ecac4b6890de7ce53acdd794bf42cfb2019ad76e
SHA256e0568a1b9f5de82ff98e314fcd590ee101e0189c2b62052a38f512c5d50e5920
SHA512753ea44b69b17e03ae7e6b3ec5f2e304472c5a80da855b5ff8592d9fa0466aa590c6ba1eedf9ffe62560c6324e22f527d6e0ac810991d3df0c4a255bc5fdcaec
-
\Users\Public\69577.exeMD5
fb5363e0cae049792ad0705042daaaa4
SHA1ecac4b6890de7ce53acdd794bf42cfb2019ad76e
SHA256e0568a1b9f5de82ff98e314fcd590ee101e0189c2b62052a38f512c5d50e5920
SHA512753ea44b69b17e03ae7e6b3ec5f2e304472c5a80da855b5ff8592d9fa0466aa590c6ba1eedf9ffe62560c6324e22f527d6e0ac810991d3df0c4a255bc5fdcaec
-
memory/576-19-0x0000000000000000-mapping.dmp
-
memory/628-38-0x00000000004638FE-mapping.dmp
-
memory/628-37-0x0000000000400000-0x0000000000468000-memory.dmpFilesize
416KB
-
memory/628-40-0x000000006B8E0000-0x000000006BFCE000-memory.dmpFilesize
6.9MB
-
memory/628-41-0x0000000000400000-0x0000000000468000-memory.dmpFilesize
416KB
-
memory/628-43-0x0000000001070000-0x0000000001071000-memory.dmpFilesize
4KB
-
memory/804-4-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
-
memory/804-3-0x00000000708A1000-0x00000000708A3000-memory.dmpFilesize
8KB
-
memory/804-2-0x0000000072E21000-0x0000000072E24000-memory.dmpFilesize
12KB
-
memory/1072-21-0x0000000004AB1000-0x0000000004AB2000-memory.dmpFilesize
4KB
-
memory/1072-13-0x000000006B8E0000-0x000000006BFCE000-memory.dmpFilesize
6.9MB
-
memory/1072-10-0x0000000000000000-mapping.dmp
-
memory/1072-18-0x00000000004A0000-0x00000000004A1000-memory.dmpFilesize
4KB
-
memory/1072-14-0x0000000000300000-0x0000000000301000-memory.dmpFilesize
4KB
-
memory/1072-16-0x0000000000480000-0x000000000049E000-memory.dmpFilesize
120KB
-
memory/1072-17-0x0000000004AB0000-0x0000000004AB1000-memory.dmpFilesize
4KB
-
memory/1172-6-0x000007FEFC321000-0x000007FEFC323000-memory.dmpFilesize
8KB
-
memory/1172-5-0x0000000000000000-mapping.dmp
-
memory/1304-20-0x0000000000000000-mapping.dmp
-
memory/1516-8-0x000007FEF7C70000-0x000007FEF7EEA000-memory.dmpFilesize
2.5MB
-
memory/1756-7-0x0000000076C21000-0x0000000076C23000-memory.dmpFilesize
8KB
-
memory/1940-32-0x0000000000710000-0x000000000071B000-memory.dmpFilesize
44KB
-
memory/1940-33-0x0000000000AC0000-0x0000000000AC1000-memory.dmpFilesize
4KB
-
memory/1940-31-0x0000000004B50000-0x0000000004B51000-memory.dmpFilesize
4KB
-
memory/1940-27-0x0000000000CE0000-0x0000000000CE1000-memory.dmpFilesize
4KB
-
memory/1940-36-0x0000000004B51000-0x0000000004B52000-memory.dmpFilesize
4KB
-
memory/1940-26-0x000000006B8E0000-0x000000006BFCE000-memory.dmpFilesize
6.9MB
-
memory/1940-23-0x0000000000000000-mapping.dmp