onlylogger | 18a2e53028f323ca5465d6acd67da7859370cd4f132f6d1a39dc08e89f88de78

Analysis

max time kernel
32s
max time network
41s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
13-10-2022 17:07

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General

Target

18a2e53028f323ca5465d6acd67da7859370cd4f132f6d1a39dc08e89f88de78.exe
Size

383KB
MD5

bd3f3318a85ad39f2d7eca6e3a666514
SHA1

74226cece4809c1e4de4018dd0ab491f90a3aae3
SHA256

18a2e53028f323ca5465d6acd67da7859370cd4f132f6d1a39dc08e89f88de78
SHA512

2a4c3375b17dd77299230effb03a5b5f491c143e5b90f34bb850a2ca9fdc903c5dd0468e45476e59cee448563b1eaa136297a1abc6a3e01c761fce5d483dcb16
SSDEEP

6144:WCMqRjFhKy2aw50LAxhLEIMqR0Y6oBx/dx7YNopl+97YK2AaWpYT+mhCZVLLsXpl:WlsFoy2HSkxhLbMqRp9x/dx7YNopk9Gz

Score

10^/10

onlylogger loader

Malware Config

Signatures

OnlyLogger
A tiny loader that uses IPLogger to get its payload.
loader onlylogger

OnlyLogger payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1148-56-0x0000000001D80000-0x0000000001DCC000-memory.dmp	family_onlylogger
behavioral1/memory/1148-57-0x0000000000400000-0x00000000005EA000-memory.dmp	family_onlylogger
behavioral1/memory/1148-60-0x0000000000400000-0x00000000005EA000-memory.dmp	family_onlylogger

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2008 cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2004 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2004 taskkill.exe

pid	process
2008	cmd.exe

pid	process
2004	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2004	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

18a2e53028f323ca5465d6acd67da7859370cd4f132f6d1a39dc08e89f88de78.execmd.exe

description	pid	process	target process
PID 1148 wrote to memory of 2008	1148	18a2e53028f323ca5465d6acd67da7859370cd4f132f6d1a39dc08e89f88de78.exe	cmd.exe
PID 1148 wrote to memory of 2008	1148	18a2e53028f323ca5465d6acd67da7859370cd4f132f6d1a39dc08e89f88de78.exe	cmd.exe
PID 1148 wrote to memory of 2008	1148	18a2e53028f323ca5465d6acd67da7859370cd4f132f6d1a39dc08e89f88de78.exe	cmd.exe
PID 1148 wrote to memory of 2008	1148	18a2e53028f323ca5465d6acd67da7859370cd4f132f6d1a39dc08e89f88de78.exe	cmd.exe
PID 2008 wrote to memory of 2004	2008	cmd.exe	taskkill.exe
PID 2008 wrote to memory of 2004	2008	cmd.exe	taskkill.exe
PID 2008 wrote to memory of 2004	2008	cmd.exe	taskkill.exe
PID 2008 wrote to memory of 2004	2008	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\18a2e53028f323ca5465d6acd67da7859370cd4f132f6d1a39dc08e89f88de78.exe
"C:\Users\Admin\AppData\Local\Temp\18a2e53028f323ca5465d6acd67da7859370cd4f132f6d1a39dc08e89f88de78.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1148

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "18a2e53028f323ca5465d6acd67da7859370cd4f132f6d1a39dc08e89f88de78.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\18a2e53028f323ca5465d6acd67da7859370cd4f132f6d1a39dc08e89f88de78.exe" & exit
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:2008

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "18a2e53028f323ca5465d6acd67da7859370cd4f132f6d1a39dc08e89f88de78.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2004

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1148-54-0x0000000075041000-0x0000000075043000-memory.dmp

Filesize
8KB

Download
memory/1148-56-0x0000000001D80000-0x0000000001DCC000-memory.dmp

Filesize
304KB

Download
memory/1148-57-0x0000000000400000-0x00000000005EA000-memory.dmp

Filesize
1.9MB

Download
memory/1148-55-0x00000000002CB000-0x00000000002F6000-memory.dmp

Filesize
172KB

Download
memory/1148-59-0x00000000002CB000-0x00000000002F6000-memory.dmp

Filesize
172KB

Download
memory/1148-60-0x0000000000400000-0x00000000005EA000-memory.dmp

Filesize
1.9MB

Download
memory/2004-61-0x0000000000000000-mapping.dmp

Download
memory/2008-58-0x0000000000000000-mapping.dmp

Download