Analysis
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max time kernel
300s -
max time network
302s -
platform
windows10_x64 -
resource
win10-en-20211014 -
submitted
21-10-2021 12:22
Static task
static1
Behavioral task
behavioral1
Sample
triage_dropped_file.exe
Resource
win7-ja-20211014
Behavioral task
behavioral2
Sample
triage_dropped_file.exe
Resource
win7-en-20210920
Behavioral task
behavioral3
Sample
triage_dropped_file.exe
Resource
win7-de-20211014
Behavioral task
behavioral4
Sample
triage_dropped_file.exe
Resource
win11
Behavioral task
behavioral5
Sample
triage_dropped_file.exe
Resource
win10-ja-20210920
Behavioral task
behavioral6
Sample
triage_dropped_file.exe
Resource
win10-en-20211014
General
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Target
triage_dropped_file.exe
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Size
253KB
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MD5
d0e4c13e6c8ba9fe34d86b554b595d9a
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SHA1
83eee2dbe00ae265af9eb13105dc1068b6b034cd
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SHA256
f8d9fbcef6907460baa7c91e53d1a40865901bb50906b5519cba440fdbc65032
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SHA512
72f5fcd367c0f0fdc83827bea529f84a85ace28550a5cd8102cb0cde2829d81defe312fb0d95d3c5a8e8728f4efd8cb433bfab0b3e1f265fffdc4e0ad687247d
Malware Config
Extracted
xloader
2.5
kqna
http://www.surfsolutions.info/kqna/
achyutlifesciences.com
anthemmg.com
netkopat.com
generationgirlnaturals.com
novatel-network.com
craftstockco.com
thevishantiverse.art
elkerfly.com
haerotechs.com
candypalette.com
gregdokes.com
e-commerce.company
gratitudeland.com
companyintelcloud.com
publicyazilim.com
xc6811.com
aracsozluk.com
janesgalant.quest
fraserstephendop.com
ryan.rentals
wyse-solutions.com
reddishslouqb.xyz
rukygua.xyz
unlimitedrehab.com
fundafes.com
goodoffice.online
guserq.com
tigerstarmatka.com
ganleychevybuyscars.com
murrayforcongress.com
artistandfund.com
integritynotarial.com
cantomarbait.com
alifdanismanlik.com
meggisiegert.com
high-clicks3.com
xn--schwche-8wa.com
caffeiny.com
landsoftexasranchland.com
armmapp.com
cursosminharendaextra.com
globalmarineserv.com
lowestfars.com
finlayo.com
hautlescoeurscollection.com
cyclesforyou.com
bagwashs.com
medicaltrust-sd.com
passivemen.com
midatlanticbath.com
mchaskellproperties.com
facetofacewith.com
worldwidecorumuk.com
g632b.online
atozshoppingllc.com
jcswkj.net
czemi.com
minutemannetwork.net
hjku.xyz
uko7wuyj.xyz
amigasconesencia.com
hodgeandpartners.com
edfnu.com
corncobmeal.com
Signatures
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Xloader Payload 4 IoCs
Processes:
resource yara_rule behavioral6/memory/688-116-0x0000000000400000-0x0000000000429000-memory.dmp xloader behavioral6/memory/688-117-0x000000000041D400-mapping.dmp xloader behavioral6/memory/1180-125-0x0000000000710000-0x0000000000739000-memory.dmp xloader behavioral6/memory/1092-137-0x000000000041D400-mapping.dmp xloader -
Executes dropped EXE 2 IoCs
Processes:
hbcxfrzgx.exehbcxfrzgx.exepid process 1580 hbcxfrzgx.exe 1092 hbcxfrzgx.exe -
Loads dropped DLL 2 IoCs
Processes:
triage_dropped_file.exehbcxfrzgx.exepid process 2292 triage_dropped_file.exe 1580 hbcxfrzgx.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
chkdsk.exedescription ioc process Key created \Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run chkdsk.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\KFAT9JPPZP = "C:\\Program Files (x86)\\Kv4zx6t\\hbcxfrzgx.exe" chkdsk.exe -
Suspicious use of SetThreadContext 4 IoCs
Processes:
triage_dropped_file.exetriage_dropped_file.exechkdsk.exehbcxfrzgx.exedescription pid process target process PID 2292 set thread context of 688 2292 triage_dropped_file.exe triage_dropped_file.exe PID 688 set thread context of 3032 688 triage_dropped_file.exe Explorer.EXE PID 1180 set thread context of 3032 1180 chkdsk.exe Explorer.EXE PID 1580 set thread context of 1092 1580 hbcxfrzgx.exe hbcxfrzgx.exe -
Drops file in Program Files directory 4 IoCs
Processes:
Explorer.EXEchkdsk.exedescription ioc process File opened for modification C:\Program Files (x86)\Kv4zx6t Explorer.EXE File created C:\Program Files (x86)\Kv4zx6t\hbcxfrzgx.exe Explorer.EXE File opened for modification C:\Program Files (x86)\Kv4zx6t\hbcxfrzgx.exe Explorer.EXE File opened for modification C:\Program Files (x86)\Kv4zx6t\hbcxfrzgx.exe chkdsk.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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NSIS installer 6 IoCs
Processes:
resource yara_rule C:\Program Files (x86)\Kv4zx6t\hbcxfrzgx.exe nsis_installer_1 C:\Program Files (x86)\Kv4zx6t\hbcxfrzgx.exe nsis_installer_2 C:\Program Files (x86)\Kv4zx6t\hbcxfrzgx.exe nsis_installer_1 C:\Program Files (x86)\Kv4zx6t\hbcxfrzgx.exe nsis_installer_2 C:\Program Files (x86)\Kv4zx6t\hbcxfrzgx.exe nsis_installer_1 C:\Program Files (x86)\Kv4zx6t\hbcxfrzgx.exe nsis_installer_2 -
Enumerates system info in registry 2 TTPs 1 IoCs
Processes:
chkdsk.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe -
Processes:
chkdsk.exedescription ioc process Key created \Registry\User\S-1-5-21-941723256-3451054534-3089625102-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2 chkdsk.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
triage_dropped_file.exechkdsk.exepid process 688 triage_dropped_file.exe 688 triage_dropped_file.exe 688 triage_dropped_file.exe 688 triage_dropped_file.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
Explorer.EXEpid process 3032 Explorer.EXE -
Suspicious behavior: MapViewOfSection 7 IoCs
Processes:
triage_dropped_file.exechkdsk.exepid process 688 triage_dropped_file.exe 688 triage_dropped_file.exe 688 triage_dropped_file.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe 1180 chkdsk.exe -
Suspicious use of AdjustPrivilegeToken 7 IoCs
Processes:
triage_dropped_file.exechkdsk.exeExplorer.EXEhbcxfrzgx.exedescription pid process Token: SeDebugPrivilege 688 triage_dropped_file.exe Token: SeDebugPrivilege 1180 chkdsk.exe Token: SeShutdownPrivilege 3032 Explorer.EXE Token: SeCreatePagefilePrivilege 3032 Explorer.EXE Token: SeDebugPrivilege 1092 hbcxfrzgx.exe Token: SeShutdownPrivilege 3032 Explorer.EXE Token: SeCreatePagefilePrivilege 3032 Explorer.EXE -
Suspicious use of WriteProcessMemory 27 IoCs
Processes:
triage_dropped_file.exeExplorer.EXEchkdsk.exehbcxfrzgx.exedescription pid process target process PID 2292 wrote to memory of 688 2292 triage_dropped_file.exe triage_dropped_file.exe PID 2292 wrote to memory of 688 2292 triage_dropped_file.exe triage_dropped_file.exe PID 2292 wrote to memory of 688 2292 triage_dropped_file.exe triage_dropped_file.exe PID 2292 wrote to memory of 688 2292 triage_dropped_file.exe triage_dropped_file.exe PID 2292 wrote to memory of 688 2292 triage_dropped_file.exe triage_dropped_file.exe PID 2292 wrote to memory of 688 2292 triage_dropped_file.exe triage_dropped_file.exe PID 3032 wrote to memory of 1180 3032 Explorer.EXE chkdsk.exe PID 3032 wrote to memory of 1180 3032 Explorer.EXE chkdsk.exe PID 3032 wrote to memory of 1180 3032 Explorer.EXE chkdsk.exe PID 1180 wrote to memory of 3996 1180 chkdsk.exe cmd.exe PID 1180 wrote to memory of 3996 1180 chkdsk.exe cmd.exe PID 1180 wrote to memory of 3996 1180 chkdsk.exe cmd.exe PID 1180 wrote to memory of 1736 1180 chkdsk.exe cmd.exe PID 1180 wrote to memory of 1736 1180 chkdsk.exe cmd.exe PID 1180 wrote to memory of 1736 1180 chkdsk.exe cmd.exe PID 1180 wrote to memory of 1292 1180 chkdsk.exe Firefox.exe PID 1180 wrote to memory of 1292 1180 chkdsk.exe Firefox.exe PID 3032 wrote to memory of 1580 3032 Explorer.EXE hbcxfrzgx.exe PID 3032 wrote to memory of 1580 3032 Explorer.EXE hbcxfrzgx.exe PID 3032 wrote to memory of 1580 3032 Explorer.EXE hbcxfrzgx.exe PID 1580 wrote to memory of 1092 1580 hbcxfrzgx.exe hbcxfrzgx.exe PID 1580 wrote to memory of 1092 1580 hbcxfrzgx.exe hbcxfrzgx.exe PID 1580 wrote to memory of 1092 1580 hbcxfrzgx.exe hbcxfrzgx.exe PID 1580 wrote to memory of 1092 1580 hbcxfrzgx.exe hbcxfrzgx.exe PID 1580 wrote to memory of 1092 1580 hbcxfrzgx.exe hbcxfrzgx.exe PID 1580 wrote to memory of 1092 1580 hbcxfrzgx.exe hbcxfrzgx.exe PID 1180 wrote to memory of 1292 1180 chkdsk.exe Firefox.exe
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\chkdsk.exe"C:\Windows\SysWOW64\chkdsk.exe"2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe/c del "C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"3⤵
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C:\Windows\SysWOW64\cmd.exe/c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V3⤵
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C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵
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C:\Program Files (x86)\Kv4zx6t\hbcxfrzgx.exe"C:\Program Files (x86)\Kv4zx6t\hbcxfrzgx.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Kv4zx6t\hbcxfrzgx.exe"C:\Program Files (x86)\Kv4zx6t\hbcxfrzgx.exe"3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Program Files (x86)\Kv4zx6t\hbcxfrzgx.exeMD5
d0e4c13e6c8ba9fe34d86b554b595d9a
SHA183eee2dbe00ae265af9eb13105dc1068b6b034cd
SHA256f8d9fbcef6907460baa7c91e53d1a40865901bb50906b5519cba440fdbc65032
SHA51272f5fcd367c0f0fdc83827bea529f84a85ace28550a5cd8102cb0cde2829d81defe312fb0d95d3c5a8e8728f4efd8cb433bfab0b3e1f265fffdc4e0ad687247d
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C:\Program Files (x86)\Kv4zx6t\hbcxfrzgx.exeMD5
d0e4c13e6c8ba9fe34d86b554b595d9a
SHA183eee2dbe00ae265af9eb13105dc1068b6b034cd
SHA256f8d9fbcef6907460baa7c91e53d1a40865901bb50906b5519cba440fdbc65032
SHA51272f5fcd367c0f0fdc83827bea529f84a85ace28550a5cd8102cb0cde2829d81defe312fb0d95d3c5a8e8728f4efd8cb433bfab0b3e1f265fffdc4e0ad687247d
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C:\Program Files (x86)\Kv4zx6t\hbcxfrzgx.exeMD5
d0e4c13e6c8ba9fe34d86b554b595d9a
SHA183eee2dbe00ae265af9eb13105dc1068b6b034cd
SHA256f8d9fbcef6907460baa7c91e53d1a40865901bb50906b5519cba440fdbc65032
SHA51272f5fcd367c0f0fdc83827bea529f84a85ace28550a5cd8102cb0cde2829d81defe312fb0d95d3c5a8e8728f4efd8cb433bfab0b3e1f265fffdc4e0ad687247d
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C:\Users\Admin\AppData\Local\Temp\DB1MD5
b608d407fc15adea97c26936bc6f03f6
SHA1953e7420801c76393902c0d6bb56148947e41571
SHA256b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf
SHA512cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4
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C:\Users\Admin\AppData\Local\Temp\v9o87lv0ox9oMD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e
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\Users\Admin\AppData\Local\Temp\nscD6DA.tmp\oirygpbyia.dllMD5
6d2a0ca8aac6594e4f037d3cecdace3b
SHA12fdc815752d2483ae536ed60dd2104b0e5cc2abd
SHA256f7a3aa43e037f6b25c8070b3aaac9f0c5037abb1c4d01afd30a6f52f7c44f468
SHA512cacc25100aedd926141416ef443dd40f03cb6b1512129bd707fc8ece1c9db2ad9a1de559e8cb3d29b569e2b1b843822f4ef681c4ea33bc5a6a290a3f17bdb7ee
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\Users\Admin\AppData\Local\Temp\nsnC4CA.tmp\oirygpbyia.dllMD5
6d2a0ca8aac6594e4f037d3cecdace3b
SHA12fdc815752d2483ae536ed60dd2104b0e5cc2abd
SHA256f7a3aa43e037f6b25c8070b3aaac9f0c5037abb1c4d01afd30a6f52f7c44f468
SHA512cacc25100aedd926141416ef443dd40f03cb6b1512129bd707fc8ece1c9db2ad9a1de559e8cb3d29b569e2b1b843822f4ef681c4ea33bc5a6a290a3f17bdb7ee
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memory/688-119-0x0000000000940000-0x0000000000C60000-memory.dmpFilesize
3.1MB
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memory/688-120-0x00000000008E0000-0x00000000008F1000-memory.dmpFilesize
68KB
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memory/688-117-0x000000000041D400-mapping.dmp
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memory/688-116-0x0000000000400000-0x0000000000429000-memory.dmpFilesize
164KB
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memory/1092-139-0x00000000009B0000-0x0000000000CD0000-memory.dmpFilesize
3.1MB
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memory/1092-137-0x000000000041D400-mapping.dmp
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memory/1180-126-0x0000000005210000-0x0000000005530000-memory.dmpFilesize
3.1MB
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memory/1180-127-0x0000000000EA0000-0x0000000000F30000-memory.dmpFilesize
576KB
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memory/1180-124-0x0000000001070000-0x000000000107A000-memory.dmpFilesize
40KB
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memory/1180-125-0x0000000000710000-0x0000000000739000-memory.dmpFilesize
164KB
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memory/1180-122-0x0000000000000000-mapping.dmp
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memory/1580-131-0x0000000000000000-mapping.dmp
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memory/1736-129-0x0000000000000000-mapping.dmp
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memory/3032-128-0x00000000071D0000-0x000000000735B000-memory.dmpFilesize
1.5MB
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memory/3032-121-0x0000000006CE0000-0x0000000006E70000-memory.dmpFilesize
1.6MB
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memory/3996-123-0x0000000000000000-mapping.dmp