bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1

General

Target

bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe
Size

153KB
MD5

7194d47f4cf25e271e612c72b853fdae
SHA1

2cfca79920a0eeec15d82fa7ee388b7fd1118445
SHA256

bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1
SHA512

7816ec5b1c6eace5f873b0973c3900e08f37728529908a4819b8a808d5c23c0d1cc331dd81cf69c2e94f79a65126cc29f643509f01df4f894809c99cd3ba47a6
SSDEEP

3072:aOLwcnfj/z/xWikNEs38bgNzkaJOjRNus72tTxYeO2a+VH9PQI0s/zWUWe7kUWCO:aOLwcnfrzahNrxLyG5QI0s/zrWQkUWc6

Score

8^/10

upx

Malware Config

Signatures

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1956-55-0x0000000001000000-0x000000000104F000-memory.dmp	upx
behavioral1/memory/1956-57-0x0000000001000000-0x000000000104F000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\SysWOW64\svchost.exe	bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe
File created	\??\c:\windows\SysWOW64\svchost.vir	bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe
File opened for modification	\??\c:\windows\SysWOW64\alg.exe	bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe

Drops file in Windows directory 5 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\microsoft.net\framework64\v4.0.30319\aspnet_state.exe	bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe
File opened for modification	\??\c:\windows\microsoft.net\framework\v2.0.50727\mscorsvw.exe	bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe
File opened for modification	\??\c:\windows\microsoft.net\framework64\v2.0.50727\mscorsvw.exe	bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe
File opened for modification	\??\c:\windows\microsoft.net\framework\v4.0.30319\mscorsvw.exe	bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe
File opened for modification	\??\c:\windows\microsoft.net\framework64\v4.0.30319\mscorsvw.exe	bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe

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

System Information Discovery
T1082

Modifies registry class 12 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Content Type\text/x-vcard	bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.wab	bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.vcf	bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.vcf\Content Type = "text/x-vcard"	bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\vcard_wab_auto_file\shell\open\command\ = "\"C:\\Program Files (x86)\\Windows Mail\\wab.exe\" /vcard %1"	bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\vcard_wab_auto_file\DefaultIcon\ = "\"C:\\Program Files (x86)\\Windows Mail\\wab.exe\",1"	bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Content Type\text/x-vcard\Extension = ".vcf"	bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.vcf\ = "vcard_wab_auto_file"	bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\vcard_wab_auto_file	bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\vcard_wab_auto_file\ = "vCard File"	bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\vcard_wab_auto_file\shell\open\command	bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\vcard_wab_auto_file\DefaultIcon	bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeTakeOwnershipPrivilege	1956	bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe

C:\Users\Admin\AppData\Local\Temp\bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe
"C:\Users\Admin\AppData\Local\Temp\bcaccfbd94b180cc845143c68d8bfa21be3fd27e3aeaf8fe878afe4c9fc8f7d1.exe"
1⤵
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
PID:1956

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1956-54-0x0000000075141000-0x0000000075143000-memory.dmp

Filesize
8KB

Download
memory/1956-55-0x0000000001000000-0x000000000104F000-memory.dmp

Filesize
316KB

Download
memory/1956-56-0x0000000074021000-0x0000000074023000-memory.dmp

Filesize
8KB

Download
memory/1956-57-0x0000000001000000-0x000000000104F000-memory.dmp

Filesize
316KB

Download

Analysis

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