c1ea2333cd830cb82079369d820347f3d38ccf080bde61fdda2de9b7b19463be

Analysis

max time kernel
151s
max time network
167s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
01/12/2022, 18:16

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General

Target

c1ea2333cd830cb82079369d820347f3d38ccf080bde61fdda2de9b7b19463be.exe
Size

504KB
MD5

0ee36ac34d0ff39f03cc0d3f224309e3
SHA1

4157f18a1ab431eb9ccc51621ecb863755c3bb53
SHA256

c1ea2333cd830cb82079369d820347f3d38ccf080bde61fdda2de9b7b19463be
SHA512

8b82a54106c26717046be4cfed4c45e2528d382ab19926e11990dc30655203caee39feda5ed574f3b20afb815310ca489ddd213d117823cdee06899da11a2be9
SSDEEP

12288:5meb8JFAgBv3r+TMP10fWdNHKVWDTerzM5NQoQpI:57OFAgBv3r+TMP106NqVWOrzM5NQRI

Score

8^/10

persistence

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
31	4476	rundll32.exe

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\ej353.no-ip.org\Parameters\ServiceDll = "C:\\Windows\\system32\\server.dll"	c1ea2333cd830cb82079369d820347f3d38ccf080bde61fdda2de9b7b19463be.exe

Loads dropped DLL 2 IoCs

pid	Process
2408	svchost.exe
4476	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\server.dll	c1ea2333cd830cb82079369d820347f3d38ccf080bde61fdda2de9b7b19463be.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2408	svchost.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 4476	2408	svchost.exe	82
PID 2408 wrote to memory of 4476	2408	svchost.exe	82
PID 2408 wrote to memory of 4476	2408	svchost.exe	82

C:\Users\Admin\AppData\Local\Temp\c1ea2333cd830cb82079369d820347f3d38ccf080bde61fdda2de9b7b19463be.exe
"C:\Users\Admin\AppData\Local\Temp\c1ea2333cd830cb82079369d820347f3d38ccf080bde61fdda2de9b7b19463be.exe"
1⤵
- Sets DLL path for service in the registry
- Drops file in System32 directory
PID:3520

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe c:\windows\system32\server.dll,main
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  PID:4476

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\server.dll

Filesize
492KB

MD5
1181c8a89cd05f8cf227708329594adb

SHA1
700b9888fc2e5714f328009bcd550f21d2e0858a

SHA256
42b2a48bec546e575c0d52fa479b3fc67feaa82d3df90636431d6b6b9c1eb75d

SHA512
f71cdac08c8f4a3dfa3a844c37409caa07170caf3c4ba3ab8c74c93111f015df0b26e79aad96b49c3169f551693aaab113882f11db0b3813d9737ed80384b67a

Download Submit
C:\Windows\SysWOW64\server.dll

Filesize
492KB

MD5
1181c8a89cd05f8cf227708329594adb

SHA1
700b9888fc2e5714f328009bcd550f21d2e0858a

SHA256
42b2a48bec546e575c0d52fa479b3fc67feaa82d3df90636431d6b6b9c1eb75d

SHA512
f71cdac08c8f4a3dfa3a844c37409caa07170caf3c4ba3ab8c74c93111f015df0b26e79aad96b49c3169f551693aaab113882f11db0b3813d9737ed80384b67a

Download Submit
\??\c:\windows\SysWOW64\server.dll

Filesize
492KB

MD5
1181c8a89cd05f8cf227708329594adb

SHA1
700b9888fc2e5714f328009bcd550f21d2e0858a

SHA256
42b2a48bec546e575c0d52fa479b3fc67feaa82d3df90636431d6b6b9c1eb75d

SHA512
f71cdac08c8f4a3dfa3a844c37409caa07170caf3c4ba3ab8c74c93111f015df0b26e79aad96b49c3169f551693aaab113882f11db0b3813d9737ed80384b67a

Download Submit
memory/3520-133-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download