Analysis
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max time kernel
21s -
max time network
123s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
05-04-2021 20:57
Static task
static1
Behavioral task
behavioral1
Sample
updatechannel4.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
updatechannel4.exe
Resource
win10v20201028
General
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Target
updatechannel4.exe
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Size
13KB
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MD5
8e9df5d267e02aee6e6e2427fa2e2454
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SHA1
b125acffe65fdb28960f5bac489e899b910659f5
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SHA256
937d2620a998f635ee40359f9a401a6c1c3c22600a6e78c8f8a760ea67d16553
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SHA512
a72336565a6a48cfbad2ceb12fad89889e1f3e9e06a5ba5cb5a0c79abd960f48c2c81806a82c909cd6cda94cc6326ce0e5747e530fb4ab63a7827f9160a83a72
Malware Config
Extracted
raccoon
3d7990f080e9dcb56104447e3789dec4380efc8b
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url4cnc
https://telete.in/jvadikkamushkin
Signatures
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Executes dropped EXE 2 IoCs
Processes:
xDvkXpuVdOfkazP5DWWDKlZm.exebkNRevSRjaEA5oPhNCCBrWvQ.exepid process 1772 xDvkXpuVdOfkazP5DWWDKlZm.exe 1120 bkNRevSRjaEA5oPhNCCBrWvQ.exe -
Loads dropped DLL 6 IoCs
Processes:
bkNRevSRjaEA5oPhNCCBrWvQ.exepid process 1120 bkNRevSRjaEA5oPhNCCBrWvQ.exe 1120 bkNRevSRjaEA5oPhNCCBrWvQ.exe 1120 bkNRevSRjaEA5oPhNCCBrWvQ.exe 1120 bkNRevSRjaEA5oPhNCCBrWvQ.exe 1120 bkNRevSRjaEA5oPhNCCBrWvQ.exe 1120 bkNRevSRjaEA5oPhNCCBrWvQ.exe -
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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 4 IoCs
Processes:
updatechannel4.exexDvkXpuVdOfkazP5DWWDKlZm.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\BI14eZCMqvHhXOjQSpKVmET0ElPKs7PL = "C:\\Users\\Admin\\Documents\\xDvkXpuVdOfkazP5DWWDKlZm.exe" updatechannel4.exe Set value (str) \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\4dYU6vBpJO20lbqoAyANj8lZSZGVYPSF = "C:\\Users\\Admin\\AppData\\Roaming\\bkNRevSRjaEA5oPhNCCBrWvQ.exe" xDvkXpuVdOfkazP5DWWDKlZm.exe Set value (str) \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\y7XBW8UyZZ1rvZ5vWXA3Vhq529BgopQ3 = "C:\\Users\\Admin\\AppData\\Roaming\\FaNUaytLZTFkon9gDi7TXaQ9.exe" xDvkXpuVdOfkazP5DWWDKlZm.exe Set value (str) \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\6xBoEoRCdLyKG3o3eU8AOZtRQbIX6xKt = "C:\\Users\\Admin\\AppData\\Roaming\\cNnMfOexff3gzUUwY2S1oQT5.exe" xDvkXpuVdOfkazP5DWWDKlZm.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 3628 timeout.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
updatechannel4.exexDvkXpuVdOfkazP5DWWDKlZm.exedescription pid process Token: SeDebugPrivilege 1176 updatechannel4.exe Token: SeDebugPrivilege 1772 xDvkXpuVdOfkazP5DWWDKlZm.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
updatechannel4.exexDvkXpuVdOfkazP5DWWDKlZm.exebkNRevSRjaEA5oPhNCCBrWvQ.execmd.exedescription pid process target process PID 1176 wrote to memory of 1772 1176 updatechannel4.exe xDvkXpuVdOfkazP5DWWDKlZm.exe PID 1176 wrote to memory of 1772 1176 updatechannel4.exe xDvkXpuVdOfkazP5DWWDKlZm.exe PID 1772 wrote to memory of 1120 1772 xDvkXpuVdOfkazP5DWWDKlZm.exe bkNRevSRjaEA5oPhNCCBrWvQ.exe PID 1772 wrote to memory of 1120 1772 xDvkXpuVdOfkazP5DWWDKlZm.exe bkNRevSRjaEA5oPhNCCBrWvQ.exe PID 1772 wrote to memory of 1120 1772 xDvkXpuVdOfkazP5DWWDKlZm.exe bkNRevSRjaEA5oPhNCCBrWvQ.exe PID 1120 wrote to memory of 3464 1120 bkNRevSRjaEA5oPhNCCBrWvQ.exe cmd.exe PID 1120 wrote to memory of 3464 1120 bkNRevSRjaEA5oPhNCCBrWvQ.exe cmd.exe PID 1120 wrote to memory of 3464 1120 bkNRevSRjaEA5oPhNCCBrWvQ.exe cmd.exe PID 3464 wrote to memory of 3628 3464 cmd.exe timeout.exe PID 3464 wrote to memory of 3628 3464 cmd.exe timeout.exe PID 3464 wrote to memory of 3628 3464 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\updatechannel4.exe"C:\Users\Admin\AppData\Local\Temp\updatechannel4.exe"1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\Documents\xDvkXpuVdOfkazP5DWWDKlZm.exe"C:\Users\Admin\Documents\xDvkXpuVdOfkazP5DWWDKlZm.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\bkNRevSRjaEA5oPhNCCBrWvQ.exe"C:\Users\Admin\AppData\Roaming\bkNRevSRjaEA5oPhNCCBrWvQ.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.execmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Roaming\bkNRevSRjaEA5oPhNCCBrWvQ.exe"4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout /T 10 /NOBREAK5⤵
- Delays execution with timeout.exe
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\bkNRevSRjaEA5oPhNCCBrWvQ.exeMD5
28345a7bb63babaf99e760965ce493b7
SHA17e752390f6ebca4e1e8889302549be4dd0845f62
SHA256f9349585a2393d4378e283e73fc48d04941666ec0ccae4dd2fb68c2cad7ac9a1
SHA512d0692febe87dafca3db8b8934003f3b3c7d9bddd3761c60c4945878787b410b581eea042cb133dd255ab4f41e473f43571d45612eaedcc3508a49b63c4594ce5
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C:\Users\Admin\AppData\Roaming\bkNRevSRjaEA5oPhNCCBrWvQ.exeMD5
28345a7bb63babaf99e760965ce493b7
SHA17e752390f6ebca4e1e8889302549be4dd0845f62
SHA256f9349585a2393d4378e283e73fc48d04941666ec0ccae4dd2fb68c2cad7ac9a1
SHA512d0692febe87dafca3db8b8934003f3b3c7d9bddd3761c60c4945878787b410b581eea042cb133dd255ab4f41e473f43571d45612eaedcc3508a49b63c4594ce5
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C:\Users\Admin\Documents\xDvkXpuVdOfkazP5DWWDKlZm.exeMD5
6be41709f8bfbf06307cc56d04249801
SHA1911d8ade72bef752233237351fbdb7a9f96e2cf0
SHA2560099e62ea3beb0f1631eb088bd697fd829963713ef4cb0e3a0a72b8c950c2383
SHA5128bc24e5f249ec4184ffba0db11dfcd7fc6bc7eae13af6ef8032abb0805f6fb61312759e7b5c46aa55a5d983e97148e3a071daec1fc38620baf4440a01c11150a
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C:\Users\Admin\Documents\xDvkXpuVdOfkazP5DWWDKlZm.exeMD5
6be41709f8bfbf06307cc56d04249801
SHA1911d8ade72bef752233237351fbdb7a9f96e2cf0
SHA2560099e62ea3beb0f1631eb088bd697fd829963713ef4cb0e3a0a72b8c950c2383
SHA5128bc24e5f249ec4184ffba0db11dfcd7fc6bc7eae13af6ef8032abb0805f6fb61312759e7b5c46aa55a5d983e97148e3a071daec1fc38620baf4440a01c11150a
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\Users\Admin\AppData\LocalLow\cR1dL5pE5dG6mD5k\freebl3.dllMD5
60acd24430204ad2dc7f148b8cfe9bdc
SHA1989f377b9117d7cb21cbe92a4117f88f9c7693d9
SHA2569876c53134dbbec4dcca67581f53638eba3fea3a15491aa3cf2526b71032da97
SHA512626c36e9567f57fa8ec9c36d96cbadede9c6f6734a7305ecfb9f798952bbacdfa33a1b6c4999ba5b78897dc2ec6f91870f7ec25b2ceacbaee4be942fe881db01
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\Users\Admin\AppData\LocalLow\cR1dL5pE5dG6mD5k\freebl3.dllMD5
60acd24430204ad2dc7f148b8cfe9bdc
SHA1989f377b9117d7cb21cbe92a4117f88f9c7693d9
SHA2569876c53134dbbec4dcca67581f53638eba3fea3a15491aa3cf2526b71032da97
SHA512626c36e9567f57fa8ec9c36d96cbadede9c6f6734a7305ecfb9f798952bbacdfa33a1b6c4999ba5b78897dc2ec6f91870f7ec25b2ceacbaee4be942fe881db01
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\Users\Admin\AppData\LocalLow\cR1dL5pE5dG6mD5k\mozglue.dllMD5
eae9273f8cdcf9321c6c37c244773139
SHA18378e2a2f3635574c106eea8419b5eb00b8489b0
SHA256a0c6630d4012ae0311ff40f4f06911bcf1a23f7a4762ce219b8dffa012d188cc
SHA51206e43e484a89cea9ba9b9519828d38e7c64b040f44cdaeb321cbda574e7551b11fea139ce3538f387a0a39a3d8c4cba7f4cf03e4a3c98db85f8121c2212a9097
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\Users\Admin\AppData\LocalLow\cR1dL5pE5dG6mD5k\nss3.dllMD5
02cc7b8ee30056d5912de54f1bdfc219
SHA1a6923da95705fb81e368ae48f93d28522ef552fb
SHA2561989526553fd1e1e49b0fea8036822ca062d3d39c4cab4a37846173d0f1753d5
SHA5120d5dfcf4fb19b27246fa799e339d67cd1b494427783f379267fb2d10d615ffb734711bab2c515062c078f990a44a36f2d15859b1dacd4143dcc35b5c0cee0ef5
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\Users\Admin\AppData\LocalLow\cR1dL5pE5dG6mD5k\softokn3.dllMD5
4e8df049f3459fa94ab6ad387f3561ac
SHA106ed392bc29ad9d5fc05ee254c2625fd65925114
SHA25625a4dae37120426ab060ebb39b7030b3e7c1093cc34b0877f223b6843b651871
SHA5123dd4a86f83465989b2b30c240a7307edd1b92d5c1d5c57d47eff287dc9daa7bace157017908d82e00be90f08ff5badb68019ffc9d881440229dcea5038f61cd6
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\Users\Admin\AppData\LocalLow\sqlite3.dllMD5
f964811b68f9f1487c2b41e1aef576ce
SHA1b423959793f14b1416bc3b7051bed58a1034025f
SHA25683bc57dcf282264f2b00c21ce0339eac20fcb7401f7c5472c0cd0c014844e5f7
SHA512565b1a7291c6fcb63205907fcd9e72fc2e11ca945afc4468c378edba882e2f314c2ac21a7263880ff7d4b84c2a1678024c1ac9971ac1c1de2bfa4248ec0f98c4
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memory/1120-18-0x0000000001990000-0x0000000001A21000-memory.dmpFilesize
580KB
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memory/1120-17-0x0000000001DF0000-0x0000000001DF1000-memory.dmpFilesize
4KB
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memory/1120-19-0x0000000000400000-0x0000000000492000-memory.dmpFilesize
584KB
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memory/1120-13-0x0000000000000000-mapping.dmp
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memory/1176-3-0x0000000000150000-0x0000000000151000-memory.dmpFilesize
4KB
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memory/1176-5-0x0000000002450000-0x0000000002451000-memory.dmpFilesize
4KB
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memory/1176-6-0x0000000005820000-0x0000000005821000-memory.dmpFilesize
4KB
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memory/1176-2-0x0000000073A80000-0x000000007416E000-memory.dmpFilesize
6.9MB
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memory/1772-7-0x0000000000000000-mapping.dmp
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memory/1772-16-0x000000001B9C0000-0x000000001B9C2000-memory.dmpFilesize
8KB
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memory/1772-11-0x0000000000450000-0x0000000000451000-memory.dmpFilesize
4KB
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memory/1772-10-0x00007FFE201D0000-0x00007FFE20BBC000-memory.dmpFilesize
9.9MB
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memory/3464-26-0x0000000000000000-mapping.dmp
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memory/3628-27-0x0000000000000000-mapping.dmp