Analysis
-
max time kernel
148s -
max time network
171s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
06-12-2022 15:07
Static task
static1
Behavioral task
behavioral1
Sample
fc978e8e9d20edf8f2a0c4b157fe1920.exe
Resource
win7-20220812-en
General
-
Target
fc978e8e9d20edf8f2a0c4b157fe1920.exe
-
Size
225KB
-
MD5
fc978e8e9d20edf8f2a0c4b157fe1920
-
SHA1
85dee7df3f6c544117cde35c89d058856fa5f559
-
SHA256
99c56c4551be01e229f63d5159d90f28c0b3fc18e7beae133aeea99a07f7feeb
-
SHA512
a6796ffb98031e85d7916f40eca661e2bdc7f76b5f29bed8d818420a1a060acf801c965cc347181c81e5458e72751d4c7e464aa4dd2ba4f7f10ca3d13650ec25
-
SSDEEP
6144:QBn14Fe6S294SbWAClQO5WkuJ9rkKwT/ZUyeok:g4Fe69IQO5+3krFw
Malware Config
Extracted
formbook
henz
IxWMb+jVsoinShuZJzk=
TPfKgQZ//oGnKr/J
EsK0WxD5kY65XOW1Td/5CxSUpCUytR7M
KebSmiCP9p8yUw==
HAt/ljkEuqMLHOLCi53Pv8MKX9qk
CY4ogZTwJc4vSw==
WWDIx5UYUDyepntE0YIAPca3/rI=
+Pkr01Lfb2rME7bL
S5nyK0p8jS2xdwQ=
W/oqvlO57LfkLcLHnQ==
zrrwtqkTLwxulm4l8FGopw==
AqucYext8bzFbOKthIm8E6gfVkUHxKY=
OfnjeDs78+RTcz4OHRl+
XKf1wwpZR5hLLjHgmUGOpQ==
JMyhSLoJPTCwn5o9zX2d8i1+
Wk54MBsDhWSVbnIRkQ==
7aaYR/tOhh9piTw5/KHSRwuK2iqgafw7pQ==
hH/EYxN+jC2xdwQ=
S0F4ORqDjS2xdwQ=
0o/UwXnuJ+sJp0cOHRl+
klE+E/jVelhT72wOHRl+
ZGvqyzaT9qfME7bL
czgajHaygm4=
KufYeyTiLhIGlzU6/38IM7IrqzhFa64=
oVNF+2VXWBL9jwGsK3Bw5TE=
iI3g6JaEalRvMDaz8AD4+vt0
nWtRAaSccRlLVg==
NtvDoS2UMcMRSA==
1t5MW/lEfjsUrFJeGXBw5TE=
UFixmi+P2cgqPRj09Sc=
MSuTonT5QhU11IGFYWKB6eJj
k4Lw3r+hTj9NF8+zgnu+Nsa3/rI=
NSN7fCqHln/S+RuZJzk=
dTUV1GY97NlVLsaSJXBw5TE=
8u5OLgNPRShyRRuZJzk=
BLTZ0G3iV0B5PvedL3Bw5TE=
ci8Y27nGCM69
JxF8W9/QoC2xdwQ=
KusZC8MsPClL1oMo8SA=
tW9XIP/VYTmVpWIDjIu1p5/ebhC9
pmc//mhFFgx3l1IOHRl+
MOsl9G5hQT6lhc0oLHWtrQ==
fXvSx46RRSiGjWphOnO0p8a3/rI=
D8Hx4JoDG+znbnIRkQ==
Dsfu2pqFJP0Kv0gX1CGX3Sw=
FcGnEr4fhW7ME7bL
hkc37Y3GF8gTMAw=
dnGZWjqPqYqgTxuZJzk=
iDEV43sIvE1j7psMiQ==
vb8qEoNQBus+mQXst1h2
46qCRt3j3cfneiudJjE=
8eoYvzW2PgDrffLWrav++Mf1TUUHxKY=
vqkFDa0HYztZ+G8ODZ7Qug==
+K/F0qEnTxACrzMR2OocXxecmq31afw7pQ==
Egwn/u1rq2uVbnIRkQ==
nFVH/3fvalaRbnIRkQ==
CvtveEUyyqUJLOiOKnBw5TE=
dmfN5LErTj9l/Icl8FGopw==
VAQtEMawYiNPaTxLIxdbpD9sZL0=
MBSMhSCOHdpCVQ==
jz95eCeaJc4vSw==
85N/Gcy+XicYq0cOHRl+
D/1B46soVTKObnIRkQ==
Hgytgwn25KqyVRuZJzk=
brennancorps.info
Signatures
-
Executes dropped EXE 2 IoCs
Processes:
skwwrnzdd.exeskwwrnzdd.exepid process 1244 skwwrnzdd.exe 1644 skwwrnzdd.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
skwwrnzdd.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation skwwrnzdd.exe -
Suspicious use of SetThreadContext 4 IoCs
Processes:
skwwrnzdd.exeskwwrnzdd.execontrol.exedescription pid process target process PID 1244 set thread context of 1644 1244 skwwrnzdd.exe skwwrnzdd.exe PID 1644 set thread context of 2708 1644 skwwrnzdd.exe Explorer.EXE PID 1644 set thread context of 2708 1644 skwwrnzdd.exe Explorer.EXE PID 1924 set thread context of 2708 1924 control.exe Explorer.EXE -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Processes:
control.exedescription ioc process Key created \Registry\User\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2 control.exe -
Suspicious behavior: EnumeratesProcesses 52 IoCs
Processes:
skwwrnzdd.execontrol.exepid process 1644 skwwrnzdd.exe 1644 skwwrnzdd.exe 1644 skwwrnzdd.exe 1644 skwwrnzdd.exe 1644 skwwrnzdd.exe 1644 skwwrnzdd.exe 1644 skwwrnzdd.exe 1644 skwwrnzdd.exe 1644 skwwrnzdd.exe 1644 skwwrnzdd.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
Explorer.EXEpid process 2708 Explorer.EXE -
Suspicious behavior: MapViewOfSection 9 IoCs
Processes:
skwwrnzdd.exeskwwrnzdd.execontrol.exepid process 1244 skwwrnzdd.exe 1644 skwwrnzdd.exe 1644 skwwrnzdd.exe 1644 skwwrnzdd.exe 1644 skwwrnzdd.exe 1924 control.exe 1924 control.exe 1924 control.exe 1924 control.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
skwwrnzdd.execontrol.exeExplorer.EXEdescription pid process Token: SeDebugPrivilege 1644 skwwrnzdd.exe Token: SeDebugPrivilege 1924 control.exe Token: SeShutdownPrivilege 2708 Explorer.EXE Token: SeCreatePagefilePrivilege 2708 Explorer.EXE Token: SeShutdownPrivilege 2708 Explorer.EXE Token: SeCreatePagefilePrivilege 2708 Explorer.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
Explorer.EXEpid process 2708 Explorer.EXE 2708 Explorer.EXE -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
fc978e8e9d20edf8f2a0c4b157fe1920.exeskwwrnzdd.exeExplorer.EXEcontrol.exedescription pid process target process PID 2204 wrote to memory of 1244 2204 fc978e8e9d20edf8f2a0c4b157fe1920.exe skwwrnzdd.exe PID 2204 wrote to memory of 1244 2204 fc978e8e9d20edf8f2a0c4b157fe1920.exe skwwrnzdd.exe PID 2204 wrote to memory of 1244 2204 fc978e8e9d20edf8f2a0c4b157fe1920.exe skwwrnzdd.exe PID 1244 wrote to memory of 1644 1244 skwwrnzdd.exe skwwrnzdd.exe PID 1244 wrote to memory of 1644 1244 skwwrnzdd.exe skwwrnzdd.exe PID 1244 wrote to memory of 1644 1244 skwwrnzdd.exe skwwrnzdd.exe PID 1244 wrote to memory of 1644 1244 skwwrnzdd.exe skwwrnzdd.exe PID 2708 wrote to memory of 1924 2708 Explorer.EXE control.exe PID 2708 wrote to memory of 1924 2708 Explorer.EXE control.exe PID 2708 wrote to memory of 1924 2708 Explorer.EXE control.exe PID 2708 wrote to memory of 1820 2708 Explorer.EXE cmstp.exe PID 2708 wrote to memory of 1820 2708 Explorer.EXE cmstp.exe PID 2708 wrote to memory of 1820 2708 Explorer.EXE cmstp.exe PID 1924 wrote to memory of 1764 1924 control.exe Firefox.exe PID 1924 wrote to memory of 1764 1924 control.exe Firefox.exe PID 1924 wrote to memory of 1764 1924 control.exe Firefox.exe
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\fc978e8e9d20edf8f2a0c4b157fe1920.exe"C:\Users\Admin\AppData\Local\Temp\fc978e8e9d20edf8f2a0c4b157fe1920.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\skwwrnzdd.exe"C:\Users\Admin\AppData\Local\Temp\skwwrnzdd.exe" C:\Users\Admin\AppData\Local\Temp\frlbrtypv.v3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\skwwrnzdd.exe"C:\Users\Admin\AppData\Local\Temp\skwwrnzdd.exe"4⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmstp.exe"C:\Windows\SysWOW64\cmstp.exe"2⤵
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C:\Windows\SysWOW64\control.exe"C:\Windows\SysWOW64\control.exe"2⤵
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\ejtmlzkrl.wybFilesize
185KB
MD5391a7b2eb7db823d74efa88dd6b3be98
SHA1812307dc31a8683db86da0fef9355ea26fceb53e
SHA25644fad663d1e424398b0259a508b2addbdd9379019fe0c75230b5bc3d22de0d65
SHA512c6f02903231330df64a606893d6bb6e1e16345eae775488b79bb29d1b9528e39dd94ec71052bc011fdda414eb1c741b5f11c80dc7f030c388c124cfca02da31b
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C:\Users\Admin\AppData\Local\Temp\frlbrtypv.vFilesize
5KB
MD5714bfb709c4f13ceca21eff02316687b
SHA1164d8b1385c90bb2314e98cda5a57b2c4d02ebd7
SHA2561741243b58bee7ce1fa356428da1e0adf27da15d7868315b24caabf44351f447
SHA51203c3f25b0b17377b5217f92ee59f1b104647c01e284342ad97d611da89e3f7508c68d8fa8fa4ede5af4fa13dd9f64d3b64f5377cc8e3b397780093aebcc652a0
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C:\Users\Admin\AppData\Local\Temp\skwwrnzdd.exeFilesize
13KB
MD53413430aa1a177d5befe48543e726854
SHA1adb75fdf8de8aac0f06a8bd65cf874dbbeab5827
SHA256c6b22738ae5791d67fa73a519d8bb52e269eb591f28320a5b0dde104d32bdb66
SHA512ff5f07df08419ad777208ff13b359ab6bb07068c584ce150d7f5b33d54f0ae18efbd9161342832da62ac258d65377ea129f4b07df094d140746cfb8e24e8e752
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C:\Users\Admin\AppData\Local\Temp\skwwrnzdd.exeFilesize
13KB
MD53413430aa1a177d5befe48543e726854
SHA1adb75fdf8de8aac0f06a8bd65cf874dbbeab5827
SHA256c6b22738ae5791d67fa73a519d8bb52e269eb591f28320a5b0dde104d32bdb66
SHA512ff5f07df08419ad777208ff13b359ab6bb07068c584ce150d7f5b33d54f0ae18efbd9161342832da62ac258d65377ea129f4b07df094d140746cfb8e24e8e752
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C:\Users\Admin\AppData\Local\Temp\skwwrnzdd.exeFilesize
13KB
MD53413430aa1a177d5befe48543e726854
SHA1adb75fdf8de8aac0f06a8bd65cf874dbbeab5827
SHA256c6b22738ae5791d67fa73a519d8bb52e269eb591f28320a5b0dde104d32bdb66
SHA512ff5f07df08419ad777208ff13b359ab6bb07068c584ce150d7f5b33d54f0ae18efbd9161342832da62ac258d65377ea129f4b07df094d140746cfb8e24e8e752
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memory/1244-132-0x0000000000000000-mapping.dmp
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memory/1644-144-0x00000000015F0000-0x0000000001600000-memory.dmpFilesize
64KB
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memory/1644-145-0x0000000000400000-0x000000000042F000-memory.dmpFilesize
188KB
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memory/1644-140-0x0000000000401000-0x000000000042F000-memory.dmpFilesize
184KB
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memory/1644-141-0x0000000001850000-0x0000000001B9A000-memory.dmpFilesize
3.3MB
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memory/1644-142-0x0000000000FC0000-0x0000000000FD0000-memory.dmpFilesize
64KB
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memory/1644-139-0x0000000000400000-0x000000000042F000-memory.dmpFilesize
188KB
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memory/1644-137-0x0000000000000000-mapping.dmp
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memory/1644-146-0x0000000000401000-0x000000000042F000-memory.dmpFilesize
184KB
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memory/1924-152-0x00000000029D0000-0x0000000002A5F000-memory.dmpFilesize
572KB
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memory/1924-154-0x0000000000CD0000-0x0000000000CFD000-memory.dmpFilesize
180KB
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memory/1924-148-0x0000000000000000-mapping.dmp
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memory/1924-149-0x00000000009A0000-0x00000000009C7000-memory.dmpFilesize
156KB
-
memory/1924-150-0x0000000000CD0000-0x0000000000CFD000-memory.dmpFilesize
180KB
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memory/1924-151-0x0000000002C40000-0x0000000002F8A000-memory.dmpFilesize
3.3MB
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memory/2708-143-0x0000000007E80000-0x0000000007FC6000-memory.dmpFilesize
1.3MB
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memory/2708-153-0x0000000008430000-0x00000000084F7000-memory.dmpFilesize
796KB
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memory/2708-147-0x0000000007FD0000-0x000000000810D000-memory.dmpFilesize
1.2MB
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memory/2708-155-0x0000000008430000-0x00000000084F7000-memory.dmpFilesize
796KB