Overview
overview
7Static
static
7lkmn720.exe
windows7-x64
7lkmn720.exe
windows10-2004-x64
7$PLUGINSDI...sh.dll
windows7-x64
3$PLUGINSDI...sh.dll
windows10-2004-x64
3$PLUGINSDI...ns.dll
windows7-x64
3$PLUGINSDI...ns.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...ss.dll
windows7-x64
3$PLUGINSDI...ss.dll
windows10-2004-x64
3Linkman.chm
windows7-x64
1Linkman.chm
windows10-2004-x64
1Linkman.exe
windows7-x64
7Linkman.exe
windows10-2004-x64
7LinkmanCom.dll
windows7-x64
7LinkmanCom.dll
windows10-2004-x64
7Output/Sam...t1.htm
windows7-x64
1Output/Sam...t1.htm
windows10-2004-x64
1Output/Sam...t2.htm
windows7-x64
1Output/Sam...t2.htm
windows10-2004-x64
1Plugins/oplugin.dll
windows7-x64
1Plugins/oplugin.dll
windows10-2004-x64
3Trialpay.exe
windows7-x64
7Trialpay.exe
windows10-2004-x64
7libeay32.dll
windows7-x64
1libeay32.dll
windows10-2004-x64
1ssleay32.dll
windows7-x64
1ssleay32.dll
windows10-2004-x64
1uninst-Linkman.exe
windows7-x64
7uninst-Linkman.exe
windows10-2004-x64
7$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3Analysis
-
max time kernel
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
11-07-2024 13:42
Behavioral task
behavioral1
Sample
lkmn720.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
lkmn720.exe
Resource
win10v2004-20240709-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/AdvSplash.dll
Resource
win7-20240704-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/AdvSplash.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win7-20240708-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240708-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/nsProcess.dll
Resource
win7-20240704-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/nsProcess.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral11
Sample
Linkman.chm
Resource
win7-20240704-en
Behavioral task
behavioral12
Sample
Linkman.chm
Resource
win10v2004-20240709-en
Behavioral task
behavioral13
Sample
Linkman.exe
Resource
win7-20240705-en
Behavioral task
behavioral14
Sample
Linkman.exe
Resource
win10v2004-20240709-en
Behavioral task
behavioral15
Sample
LinkmanCom.dll
Resource
win7-20240708-en
Behavioral task
behavioral16
Sample
LinkmanCom.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral17
Sample
Output/SampleLinkmanOutput1.htm
Resource
win7-20240708-en
Behavioral task
behavioral18
Sample
Output/SampleLinkmanOutput1.htm
Resource
win10v2004-20240709-en
Behavioral task
behavioral19
Sample
Output/SampleLinkmanOutput2.htm
Resource
win7-20240704-en
Behavioral task
behavioral20
Sample
Output/SampleLinkmanOutput2.htm
Resource
win10v2004-20240709-en
Behavioral task
behavioral21
Sample
Plugins/oplugin.dll
Resource
win7-20240705-en
Behavioral task
behavioral22
Sample
Plugins/oplugin.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral23
Sample
Trialpay.exe
Resource
win7-20240704-en
Behavioral task
behavioral24
Sample
Trialpay.exe
Resource
win10v2004-20240709-en
Behavioral task
behavioral25
Sample
libeay32.dll
Resource
win7-20240708-en
Behavioral task
behavioral26
Sample
libeay32.dll
Resource
win10v2004-20240704-en
Behavioral task
behavioral27
Sample
ssleay32.dll
Resource
win7-20240704-en
Behavioral task
behavioral28
Sample
ssleay32.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral29
Sample
uninst-Linkman.exe
Resource
win7-20240704-en
Behavioral task
behavioral30
Sample
uninst-Linkman.exe
Resource
win10v2004-20240709-en
Behavioral task
behavioral31
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240704-en
Behavioral task
behavioral32
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240709-en
General
-
Target
uninst-Linkman.exe
-
Size
59KB
-
MD5
d046c01b1d70ccdd1d2359afcbbb674e
-
SHA1
9d73ab15453e6a55e44e73aadea406ab9ccc9f6a
-
SHA256
9eef15bb6118425ae86699011fce216fe210c6396ed8dc5d6a7beb7c3dd11ede
-
SHA512
5288cf1e92e012e4184ebf02f57be7b138b7c62b7f7701e7fd717199123e95ff74c3f309052f40af9a29379ef5e9d996320392bd2c24eba30ce9b6913778464b
-
SSDEEP
1536:HUGGrf+wMRVrkxmJLqAELVigG8YsRYEPBoI4:HUG6UVYxmJuAI05XEPBe
Malware Config
Signatures
-
Executes dropped EXE 1 IoCs
pid Process 2136 Au_.exe -
Loads dropped DLL 1 IoCs
pid Process 1864 uninst-Linkman.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
NSIS installer 1 IoCs
resource yara_rule behavioral29/files/0x000500000001a099-2.dat nsis_installer_1 -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2136 Au_.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1864 wrote to memory of 2136 1864 uninst-Linkman.exe 30 PID 1864 wrote to memory of 2136 1864 uninst-Linkman.exe 30 PID 1864 wrote to memory of 2136 1864 uninst-Linkman.exe 30 PID 1864 wrote to memory of 2136 1864 uninst-Linkman.exe 30
Processes
-
C:\Users\Admin\AppData\Local\Temp\uninst-Linkman.exe"C:\Users\Admin\AppData\Local\Temp\uninst-Linkman.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1864 -
C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe"C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\2⤵
- Executes dropped EXE
- Suspicious behavior: GetForegroundWindowSpam
PID:2136
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
59KB
MD5d046c01b1d70ccdd1d2359afcbbb674e
SHA19d73ab15453e6a55e44e73aadea406ab9ccc9f6a
SHA2569eef15bb6118425ae86699011fce216fe210c6396ed8dc5d6a7beb7c3dd11ede
SHA5125288cf1e92e012e4184ebf02f57be7b138b7c62b7f7701e7fd717199123e95ff74c3f309052f40af9a29379ef5e9d996320392bd2c24eba30ce9b6913778464b