b6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594

General

Target

b6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594.exe
Size

200KB
MD5

302b61562fd258c88ab0db3ffa640faf
SHA1

bf6d895f57b8f18d5b2a0f6ca969c93b142fbce5
SHA256

b6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594
SHA512

71f9e1b27653fa8af02e9846691014ccf8676b07679b4555a09dbf2e9e347027f0d186ec96c80a26abc252d74cec8ef43cfbc1b684c8edf003dcc79cadb58fe0
SSDEEP

3072:GNkhoRdoQbxSTcbrh82bQZfR3pKHJLbSvGft0WtPwpIC:GNgo3oInbQZp5MJLbSvGfh0

Score

5^/10

Malware Config

Signatures

Drops file in System32 directory 1 IoCs

Processes:

avatarshader.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	avatarshader.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies data under HKEY_USERS 21 IoCs

Processes:

avatarshader.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	avatarshader.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	avatarshader.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	avatarshader.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	avatarshader.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{05B2C8E8-7666-415E-96A5-AD7D4C1D4CE0}\WpadDecisionReason = "1"	avatarshader.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5a-eb-13-bf-fe-a4	avatarshader.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5a-eb-13-bf-fe-a4\WpadDecisionReason = "1"	avatarshader.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	avatarshader.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	avatarshader.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{05B2C8E8-7666-415E-96A5-AD7D4C1D4CE0}\WpadDecisionTime = a0afcc005706d901	avatarshader.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{05B2C8E8-7666-415E-96A5-AD7D4C1D4CE0}\WpadNetworkName = "Network 2"	avatarshader.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	avatarshader.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	avatarshader.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{05B2C8E8-7666-415E-96A5-AD7D4C1D4CE0}\5a-eb-13-bf-fe-a4	avatarshader.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	avatarshader.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	avatarshader.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	avatarshader.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{05B2C8E8-7666-415E-96A5-AD7D4C1D4CE0}	avatarshader.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{05B2C8E8-7666-415E-96A5-AD7D4C1D4CE0}\WpadDecision = "0"	avatarshader.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5a-eb-13-bf-fe-a4\WpadDecisionTime = a0afcc005706d901	avatarshader.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5a-eb-13-bf-fe-a4\WpadDecision = "0"	avatarshader.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

avatarshader.exe

pid process

588 avatarshader.exe
588 avatarshader.exe
588 avatarshader.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

b6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594.exe

pid process

1996 b6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594.exe

pid	process
588	avatarshader.exe
588	avatarshader.exe
588	avatarshader.exe

pid	process
1996	b6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594.exe

Suspicious use of UnmapMainImage 4 IoCs

Processes:

b6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594.exeb6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594.exeavatarshader.exeavatarshader.exe

pid	process
1168	b6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594.exe
1996	b6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594.exe
1488	avatarshader.exe
588	avatarshader.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

b6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594.exeavatarshader.exe

description	pid	process	target process
PID 1168 wrote to memory of 1996	1168	b6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594.exe	b6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594.exe
PID 1168 wrote to memory of 1996	1168	b6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594.exe	b6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594.exe
PID 1168 wrote to memory of 1996	1168	b6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594.exe	b6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594.exe
PID 1168 wrote to memory of 1996	1168	b6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594.exe	b6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594.exe
PID 1488 wrote to memory of 588	1488	avatarshader.exe	avatarshader.exe
PID 1488 wrote to memory of 588	1488	avatarshader.exe	avatarshader.exe
PID 1488 wrote to memory of 588	1488	avatarshader.exe	avatarshader.exe
PID 1488 wrote to memory of 588	1488	avatarshader.exe	avatarshader.exe

C:\Users\Admin\AppData\Local\Temp\b6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594.exe
"C:\Users\Admin\AppData\Local\Temp\b6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594.exe"
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1168

C:\Users\Admin\AppData\Local\Temp\b6a03ef6505f465c895d0887c0479db9e2cdf7d391123a14c03b1af7dcb69594.exe
--41c2bf6d
2⤵
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
PID:1996

C:\Windows\SysWOW64\avatarshader.exe
"C:\Windows\SysWOW64\avatarshader.exe"
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1488

C:\Windows\SysWOW64\avatarshader.exe
--ee7ec2d0
2⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
PID:588

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/588-60-0x0000000000000000-mapping.dmp

Download
memory/588-62-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/588-64-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1168-55-0x00000000002B0000-0x00000000002CB000-memory.dmp

Filesize
108KB

Download
memory/1168-56-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1996-54-0x0000000000000000-mapping.dmp

Download
memory/1996-57-0x00000000003A0000-0x00000000003BB000-memory.dmp

Filesize
108KB

Download
memory/1996-58-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1996-59-0x00000000760E1000-0x00000000760E3000-memory.dmp

Filesize
8KB

Download
memory/1996-61-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads