Analysis
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max time kernel
9s -
max time network
140s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
02-11-2022 10:11
Behavioral task
behavioral1
Sample
7e1fb350c38b9cf7c0a61681792c83555d17523e11e15546ec9b6d66ce18724d.exe
Resource
win10v2004-20220812-en
General
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Target
7e1fb350c38b9cf7c0a61681792c83555d17523e11e15546ec9b6d66ce18724d.exe
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Size
1.3MB
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MD5
c0621dac2fab57c4484011aa811263e9
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SHA1
6f55ac76e1edce7ad43cf082a8775b0d66b947f2
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SHA256
7e1fb350c38b9cf7c0a61681792c83555d17523e11e15546ec9b6d66ce18724d
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SHA512
a798b1eeb67f1b5f1900161088276cf70289ae717854272dc7c602c5c06e21f36c85fc19b5ac9a01c1dc8df016d9d7b9be02235744fae6ca55a8ff33b956a06c
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SSDEEP
24576:U2G/nvxW3Ww0t6TnzGmVBDh4+aknuRRZJND0gFJ4rD/IjC:UbA30GnzV/q+DnsXg
Malware Config
Signatures
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DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Process spawned unexpected child process 9 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2860 4368 schtasks.exe 24 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 5016 4368 schtasks.exe 24 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4784 4368 schtasks.exe 24 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4828 4368 schtasks.exe 24 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4748 4368 schtasks.exe 24 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1320 4368 schtasks.exe 24 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3984 4368 schtasks.exe 24 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1748 4368 schtasks.exe 24 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1416 4368 schtasks.exe 24 -
resource yara_rule behavioral1/files/0x0006000000022e64-137.dat dcrat behavioral1/files/0x0006000000022e64-138.dat dcrat behavioral1/memory/4416-139-0x0000000000F40000-0x0000000001050000-memory.dmp dcrat behavioral1/files/0x0006000000022e66-163.dat dcrat behavioral1/files/0x0006000000022e66-164.dat dcrat behavioral1/files/0x0006000000022e66-171.dat dcrat behavioral1/files/0x0006000000022e66-179.dat dcrat -
Executes dropped EXE 1 IoCs
pid Process 4416 DllCommonsvc.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation WScript.exe Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation 7e1fb350c38b9cf7c0a61681792c83555d17523e11e15546ec9b6d66ce18724d.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Drops file in Program Files directory 3 IoCs
description ioc Process File created C:\Program Files (x86)\Windows Defender\ja-JP\taskhostw.exe DllCommonsvc.exe File opened for modification C:\Program Files (x86)\Windows Defender\ja-JP\taskhostw.exe DllCommonsvc.exe File created C:\Program Files (x86)\Windows Defender\ja-JP\ea9f0e6c9e2dcd DllCommonsvc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 9 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2860 schtasks.exe 4784 schtasks.exe 4828 schtasks.exe 1320 schtasks.exe 1748 schtasks.exe 5016 schtasks.exe 4748 schtasks.exe 3984 schtasks.exe 1416 schtasks.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings 7e1fb350c38b9cf7c0a61681792c83555d17523e11e15546ec9b6d66ce18724d.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 4416 DllCommonsvc.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4416 DllCommonsvc.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 3972 wrote to memory of 3328 3972 7e1fb350c38b9cf7c0a61681792c83555d17523e11e15546ec9b6d66ce18724d.exe 80 PID 3972 wrote to memory of 3328 3972 7e1fb350c38b9cf7c0a61681792c83555d17523e11e15546ec9b6d66ce18724d.exe 80 PID 3972 wrote to memory of 3328 3972 7e1fb350c38b9cf7c0a61681792c83555d17523e11e15546ec9b6d66ce18724d.exe 80 PID 3328 wrote to memory of 1344 3328 WScript.exe 81 PID 3328 wrote to memory of 1344 3328 WScript.exe 81 PID 3328 wrote to memory of 1344 3328 WScript.exe 81 PID 1344 wrote to memory of 4416 1344 cmd.exe 83 PID 1344 wrote to memory of 4416 1344 cmd.exe 83 PID 4416 wrote to memory of 2784 4416 DllCommonsvc.exe 93 PID 4416 wrote to memory of 2784 4416 DllCommonsvc.exe 93 PID 4416 wrote to memory of 1184 4416 DllCommonsvc.exe 94 PID 4416 wrote to memory of 1184 4416 DllCommonsvc.exe 94 PID 4416 wrote to memory of 1120 4416 DllCommonsvc.exe 95 PID 4416 wrote to memory of 1120 4416 DllCommonsvc.exe 95 PID 4416 wrote to memory of 3628 4416 DllCommonsvc.exe 98 PID 4416 wrote to memory of 3628 4416 DllCommonsvc.exe 98
Processes
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C:\Users\Admin\AppData\Local\Temp\7e1fb350c38b9cf7c0a61681792c83555d17523e11e15546ec9b6d66ce18724d.exe"C:\Users\Admin\AppData\Local\Temp\7e1fb350c38b9cf7c0a61681792c83555d17523e11e15546ec9b6d66ce18724d.exe"1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3972 -
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\providercommon\yTUdeXjbLOhnrN32dgrxVg.vbe"2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3328 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\providercommon\1zu9dW.bat" "3⤵
- Suspicious use of WriteProcessMemory
PID:1344 -
C:\providercommon\DllCommonsvc.exe"C:\providercommon\DllCommonsvc.exe"4⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4416 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\providercommon\DllCommonsvc.exe'5⤵PID:2784
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Windows Defender\ja-JP\taskhostw.exe'5⤵PID:1184
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\providercommon\lsass.exe'5⤵PID:1120
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\providercommon\conhost.exe'5⤵PID:3628
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\W7FqciKhTi.bat"5⤵PID:320
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C:\Windows\system32\w32tm.exew32tm /stripchart /computer:localhost /period:5 /dataonly /samples:26⤵PID:4092
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C:\Program Files (x86)\Windows Defender\ja-JP\taskhostw.exe"C:\Program Files (x86)\Windows Defender\ja-JP\taskhostw.exe"6⤵PID:3440
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\Lg3y2yDdyq.bat"7⤵PID:3164
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C:\Windows\system32\w32tm.exew32tm /stripchart /computer:localhost /period:5 /dataonly /samples:28⤵PID:2868
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C:\Program Files (x86)\Windows Defender\ja-JP\taskhostw.exe"C:\Program Files (x86)\Windows Defender\ja-JP\taskhostw.exe"8⤵PID:1948
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\yvlYFj4oEg.bat"9⤵PID:2928
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C:\Windows\system32\w32tm.exew32tm /stripchart /computer:localhost /period:5 /dataonly /samples:210⤵PID:4164
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C:\Program Files (x86)\Windows Defender\ja-JP\taskhostw.exe"C:\Program Files (x86)\Windows Defender\ja-JP\taskhostw.exe"10⤵PID:4776
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Windows Defender\ja-JP\taskhostw.exe'" /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2860
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "taskhostw" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Defender\ja-JP\taskhostw.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:5016
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Windows Defender\ja-JP\taskhostw.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4784
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "lsassl" /sc MINUTE /mo 8 /tr "'C:\providercommon\lsass.exe'" /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4828
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\providercommon\lsass.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4748
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "lsassl" /sc MINUTE /mo 6 /tr "'C:\providercommon\lsass.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1320
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "conhostc" /sc MINUTE /mo 12 /tr "'C:\providercommon\conhost.exe'" /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3984
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\providercommon\conhost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1748
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "conhostc" /sc MINUTE /mo 10 /tr "'C:\providercommon\conhost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1416
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1.0MB
MD5bd31e94b4143c4ce49c17d3af46bcad0
SHA1f8c51ff3ff909531d9469d4ba1bbabae101853ff
SHA256b5199d3eb28e7de8ec4a5de66cb339a03d90b297e2292473badaab98ade15c63
SHA512f96658bd19b672fd84038bd7e95c89e14f4e6f84e3ce9c6fe3216861a41203406148c6a809c2ab350d0d6c5919c845f619deb1fc9b1f1814dfce87e566bc2394
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Filesize
1.0MB
MD5bd31e94b4143c4ce49c17d3af46bcad0
SHA1f8c51ff3ff909531d9469d4ba1bbabae101853ff
SHA256b5199d3eb28e7de8ec4a5de66cb339a03d90b297e2292473badaab98ade15c63
SHA512f96658bd19b672fd84038bd7e95c89e14f4e6f84e3ce9c6fe3216861a41203406148c6a809c2ab350d0d6c5919c845f619deb1fc9b1f1814dfce87e566bc2394
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Filesize
1.0MB
MD5bd31e94b4143c4ce49c17d3af46bcad0
SHA1f8c51ff3ff909531d9469d4ba1bbabae101853ff
SHA256b5199d3eb28e7de8ec4a5de66cb339a03d90b297e2292473badaab98ade15c63
SHA512f96658bd19b672fd84038bd7e95c89e14f4e6f84e3ce9c6fe3216861a41203406148c6a809c2ab350d0d6c5919c845f619deb1fc9b1f1814dfce87e566bc2394
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Filesize
1.0MB
MD5bd31e94b4143c4ce49c17d3af46bcad0
SHA1f8c51ff3ff909531d9469d4ba1bbabae101853ff
SHA256b5199d3eb28e7de8ec4a5de66cb339a03d90b297e2292473badaab98ade15c63
SHA512f96658bd19b672fd84038bd7e95c89e14f4e6f84e3ce9c6fe3216861a41203406148c6a809c2ab350d0d6c5919c845f619deb1fc9b1f1814dfce87e566bc2394
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Filesize
2KB
MD5d85ba6ff808d9e5444a4b369f5bc2730
SHA131aa9d96590fff6981b315e0b391b575e4c0804a
SHA25684739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA5128c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
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Filesize
1KB
MD5baf55b95da4a601229647f25dad12878
SHA1abc16954ebfd213733c4493fc1910164d825cac8
SHA256ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924
SHA51224f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545
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Filesize
944B
MD5d28a889fd956d5cb3accfbaf1143eb6f
SHA1157ba54b365341f8ff06707d996b3635da8446f7
SHA25621e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45
SHA5120b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c
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Filesize
944B
MD5e243a38635ff9a06c87c2a61a2200656
SHA1ecd95ed5bf1a9fbe96a8448fc2814a0210fa2afc
SHA256af5782703f3f2d5a29fb313dae6680a64134db26064d4a321a3f23b75f6ca00f
SHA5124418957a1b10eee44cf270c81816ae707352411c4f5ac14b6b61ab537c91480e24e0a0a2c276a6291081b4984c123cf673a45dcedb0ceeef682054ba0fc19cb4
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Filesize
944B
MD5a8e8360d573a4ff072dcc6f09d992c88
SHA13446774433ceaf0b400073914facab11b98b6807
SHA256bf5e284e8f95122bf75ead61c7e2b40f55c96742b05330b5b1cb7915991df13b
SHA5124ee5167643d82082f57c42616007ef9be57f43f9731921bdf7bca611a914724ad94072d3c8f5b130fa54129e5328ccdebf37ba74339c37deb53e79df5cdf0dbe
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Filesize
224B
MD54cd57e5fa7873f788665c4b872e50cab
SHA1ef4201167d06b8a04cf14899de5e37dabc45586f
SHA256e67ba50ff7be632cc10e871865d541ccdc05d5c8b3e91b5e4ca9d1e2bd88e24f
SHA5126a2490852aef11814ae3f8292e8fcdab26232478a0d7906e1b69c38aa9e52aba427cf48485a42515a9f362433319ace9795c1106ab17b0b0bd816450800d9a70
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Filesize
224B
MD50c45c49083730037ad428ffa9724f327
SHA19f767b974068d107456c37e55e2393827eec02b4
SHA256cdc846091084da837ee12ecbf3bffa0de02eedbd72fa6fc471142f116804f386
SHA512490e42d9ba27dba8fd254a956577156e4e0c00cdfeb5f28633a980502b62ff3bb084f6ba547fc8dda70c06998d0cbe7c9a056afc7293ff6b2e64c6fa474577e8
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Filesize
224B
MD51bad754945f696a7306afc6565220eed
SHA139ca196a43de49ce964918b319c475bd2f95c5de
SHA256e8d0d585f7f98c33c25c025cbd2671ef25def40ec26c62f5a013563e7c8cd77f
SHA51236b4c99255e05dbd5b5126ee14f2e9609244ca3680bfd9f45590386d5438ba458ef416fa1861cc7466c0c07a836781a0970bdde0ff6ee64417468765c8260275
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Filesize
36B
MD56783c3ee07c7d151ceac57f1f9c8bed7
SHA117468f98f95bf504cc1f83c49e49a78526b3ea03
SHA2568ab782f0f327a2021530e7230d3aee8abbecb7eed59482a3a46e78b9e3862322
SHA512c6012d4bfac1ed14d0fd9f0eabd0e1c3d647b343db292a907b246271d52a4b7469c809db43910ddba2e8c5045f9cb3d24d0af62d363281e6cb8b39ee94a183e8
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Filesize
1.0MB
MD5bd31e94b4143c4ce49c17d3af46bcad0
SHA1f8c51ff3ff909531d9469d4ba1bbabae101853ff
SHA256b5199d3eb28e7de8ec4a5de66cb339a03d90b297e2292473badaab98ade15c63
SHA512f96658bd19b672fd84038bd7e95c89e14f4e6f84e3ce9c6fe3216861a41203406148c6a809c2ab350d0d6c5919c845f619deb1fc9b1f1814dfce87e566bc2394
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Filesize
1.0MB
MD5bd31e94b4143c4ce49c17d3af46bcad0
SHA1f8c51ff3ff909531d9469d4ba1bbabae101853ff
SHA256b5199d3eb28e7de8ec4a5de66cb339a03d90b297e2292473badaab98ade15c63
SHA512f96658bd19b672fd84038bd7e95c89e14f4e6f84e3ce9c6fe3216861a41203406148c6a809c2ab350d0d6c5919c845f619deb1fc9b1f1814dfce87e566bc2394
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Filesize
197B
MD58088241160261560a02c84025d107592
SHA1083121f7027557570994c9fc211df61730455bb5
SHA2562072cc9a4a3b84d4c5178ab41c5588eea7d0103e3928e34d64f17bf97f3d1cc1
SHA51220d9369dd359315848ea30144383a0bb479d86059fdbc3b3256ac84f998193512feb3b1799ab663619920c99fe7e0ebba33ada31a3855094b956fcd351c90478