Resubmissions
12/04/2024, 14:40
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231225-fjlybsahbr 7Analysis
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max time kernel
1791s -
max time network
1807s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
09/04/2024, 07:38
Static task
static1
Behavioral task
behavioral1
Sample
2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe
Resource
win10-20240404-en
Behavioral task
behavioral3
Sample
2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral4
Sample
2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe
Resource
win11-20240221-en
General
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Target
2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe
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Size
1.9MB
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MD5
59646583129acf5244d686f15aadb25a
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SHA1
5b8b55dc12217eb37bd25ca61cd7aceec729e603
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SHA256
2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250
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SHA512
99a4c6612de866f966f2b9f84c16ada59d3606db942011d720debe12f4b059a9aec1b7c1046231b15ae728b6a27e616056588680aa3ebcbf0340a4d6eeddb9b2
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SSDEEP
49152:Qe6RRRpEHQN/ThQrezxMQnXW8qaJZkRLagEoH6gFt:Q9nLEcrhhmYLwpbE+t
Malware Config
Signatures
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Contacts a large (851) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
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resource yara_rule behavioral2/memory/4572-3-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-5-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-6-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-7-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-8-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-9-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-39-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-40-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-44-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-45-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-46-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-47-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-51-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-52-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-54-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-55-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-56-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-58-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-60-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-63-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-66-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-70-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-73-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-76-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-74-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-80-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-79-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-78-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-71-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-67-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-65-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-62-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-64-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-61-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-59-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-57-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-84-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-83-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-81-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-91-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-89-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-98-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-94-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-93-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-96-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-92-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-88-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-87-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-86-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-85-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-97-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-104-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-99-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-103-0x0000000000400000-0x0000000000848000-memory.dmp upx behavioral2/memory/4572-101-0x0000000000400000-0x0000000000848000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CSRSS = "\"C:\\ProgramData\\Drivers\\csrss.exe\"" 2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe -
Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1996 set thread context of 4572 1996 2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe 72 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 13108 4572 WerFault.exe 72 -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4572 2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe 4572 2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe 4572 2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe 4572 2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe 4572 2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe 4572 2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1996 wrote to memory of 4572 1996 2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe 72 PID 1996 wrote to memory of 4572 1996 2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe 72 PID 1996 wrote to memory of 4572 1996 2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe 72 PID 1996 wrote to memory of 4572 1996 2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe 72 PID 1996 wrote to memory of 4572 1996 2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe 72 PID 1996 wrote to memory of 4572 1996 2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe 72 PID 1996 wrote to memory of 4572 1996 2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe 72 PID 1996 wrote to memory of 4572 1996 2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe 72
Processes
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C:\Users\Admin\AppData\Local\Temp\2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe"C:\Users\Admin\AppData\Local\Temp\2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1996 -
C:\Users\Admin\AppData\Local\Temp\2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe"C:\Users\Admin\AppData\Local\Temp\2cdc39f39a9369ae4062822ea6726f2e508d5d29514b3cee06f809ce6ef16250.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:4572 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4572 -s 117443⤵
- Program crash
PID:13108
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.6MB
MD55777d56460efb8519bcfe961647ffcc8
SHA1cb180d9885a517ec254c1fb7271e02de5bb3a73a
SHA256a10fc5dda3f349841a63877282650e21b6a4fd3176e48d607cbdbaaef5b1bd66
SHA512cdfd33d9d5ebf919431cd7a12f1b55137ab7005c69e2941c6e15ee081ecf2137ef4e272c4f40fbadd6f3c1b45f08aba31bc6ec0bd394f8fc3abf310cb64e7bbf
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Filesize
11.4MB
MD5b2d71845fde7f58bde380d4fc21f473f
SHA1e7a3e8c9492157fd22ed333439910d0eaad3422b
SHA2568efa9f38f6f5469c6756f8fecc03f45e6371884eec71f36fdf1974ec689b2654
SHA512702dff66ec7726cc03a58dce01bd6f3fd4a322099708935c7c487fa44710f9134321045fddca281fdfcd5227d6d67db9328bf20b5d343291eac490c757a6fe50