smokeloader | a7f605d4110bba430e02c7c5240e656fb3f1dd7f02dce985e9e5677169c9de55

Analysis

max time kernel
153s
max time network
108s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
07-11-2023 20:27

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General

Target

tmp.exe
Size

284KB
MD5

e3dc222d0a34c4b230f538a67bb7265d
SHA1

d88345aef0e59341e6c4297d2685cb5f08c0aa80
SHA256

a7f605d4110bba430e02c7c5240e656fb3f1dd7f02dce985e9e5677169c9de55
SHA512

3d775c3c940ddd3d43fa56726ae4f8c0442a4d576cb410e60e2f010e1ff6273a2064f646c6af4a6993ff78924c329ac821811f97402d1472495c1d7a6d838797
SSDEEP

6144:ukXNoFja9QXwKN1NdR7ws5lDohIiTXcnXzrCZemJPg1ZVzqH:jiFWUtXjDojODrXeIBze

Score

10^/10

smokeloader backdoor collection persistence trojan

Malware Config

Extracted

Family

smokeloader

Version

2022

http://glueberry-og.cc/

http://glueberry-og.co/

http://glueberry-og.to/

rc4.i32

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader

Executes dropped EXE 1 IoCs

pid	Process
312	cegbfja

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	explorer.exe
Key opened	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	explorer.exe
Key opened	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	explorer.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Windows\CurrentVersion\Run\SOCKET5 = "C:\\Users\\Admin\\AppData\\Roaming\\SOCKET5.exe"	tmp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1112 set thread context of 2748	1112	tmp.exe	32

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	RegAsm.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	RegAsm.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1112	tmp.exe
1112	tmp.exe
2748	RegAsm.exe
2748	RegAsm.exe
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1356	Process not Found

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2748	RegAsm.exe
1356	Process not Found
1356	Process not Found
1356	Process not Found
1356	Process not Found

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1112	tmp.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1112 wrote to memory of 2832	1112	tmp.exe	31
PID 1112 wrote to memory of 2832	1112	tmp.exe	31
PID 1112 wrote to memory of 2832	1112	tmp.exe	31
PID 1112 wrote to memory of 2832	1112	tmp.exe	31
PID 1112 wrote to memory of 2832	1112	tmp.exe	31
PID 1112 wrote to memory of 2832	1112	tmp.exe	31
PID 1112 wrote to memory of 2832	1112	tmp.exe	31
PID 1112 wrote to memory of 2748	1112	tmp.exe	32
PID 1112 wrote to memory of 2748	1112	tmp.exe	32
PID 1112 wrote to memory of 2748	1112	tmp.exe	32
PID 1112 wrote to memory of 2748	1112	tmp.exe	32
PID 1112 wrote to memory of 2748	1112	tmp.exe	32
PID 1112 wrote to memory of 2748	1112	tmp.exe	32
PID 1112 wrote to memory of 2748	1112	tmp.exe	32
PID 1112 wrote to memory of 2748	1112	tmp.exe	32
PID 1112 wrote to memory of 2748	1112	tmp.exe	32
PID 1112 wrote to memory of 2748	1112	tmp.exe	32
PID 1356 wrote to memory of 2736	1356	Process not Found	33
PID 1356 wrote to memory of 2736	1356	Process not Found	33
PID 1356 wrote to memory of 2736	1356	Process not Found	33
PID 1356 wrote to memory of 2736	1356	Process not Found	33
PID 1356 wrote to memory of 2736	1356	Process not Found	33
PID 1356 wrote to memory of 1968	1356	Process not Found	34
PID 1356 wrote to memory of 1968	1356	Process not Found	34
PID 1356 wrote to memory of 1968	1356	Process not Found	34
PID 1356 wrote to memory of 1968	1356	Process not Found	34
PID 1092 wrote to memory of 312	1092	taskeng.exe	36
PID 1092 wrote to memory of 312	1092	taskeng.exe	36
PID 1092 wrote to memory of 312	1092	taskeng.exe	36
PID 1092 wrote to memory of 312	1092	taskeng.exe	36

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	explorer.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	explorer.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1112
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  2⤵
  PID:2832
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:2748

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
- Accesses Microsoft Outlook profiles
- outlook_office_path
- outlook_win_path
PID:2736

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:1968

C:\Windows\system32\taskeng.exe
taskeng.exe {6004038A-842E-4A8A-BD0B-5A1951E6D92C} S-1-5-21-2084844033-2744876406-2053742436-1000:GGPVHMXR\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1092
- C:\Users\Admin\AppData\Roaming\cegbfja
  C:\Users\Admin\AppData\Roaming\cegbfja
  2⤵
  - Executes dropped EXE
  PID:312

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\cegbfja

Filesize
63KB

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
C:\Users\Admin\AppData\Roaming\cegbfja

Filesize
63KB

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
memory/312-50-0x0000000074A80000-0x000000007516E000-memory.dmp

Filesize
6.9MB

Download
memory/312-48-0x0000000000110000-0x0000000000122000-memory.dmp

Filesize
72KB

Download
memory/312-49-0x0000000074A80000-0x000000007516E000-memory.dmp

Filesize
6.9MB

Download
memory/1112-3-0x00000000011B0000-0x00000000011F0000-memory.dmp

Filesize
256KB

Download
memory/1112-6-0x00000000010E0000-0x000000000112C000-memory.dmp

Filesize
304KB

Download
memory/1112-5-0x0000000000B20000-0x0000000000B52000-memory.dmp

Filesize
200KB

Download
memory/1112-4-0x0000000000380000-0x00000000003B2000-memory.dmp

Filesize
200KB

Download
memory/1112-2-0x0000000000650000-0x000000000069A000-memory.dmp

Filesize
296KB

Download
memory/1112-15-0x0000000074AD0000-0x00000000751BE000-memory.dmp

Filesize
6.9MB

Download
memory/1112-0-0x0000000001260000-0x00000000012AE000-memory.dmp

Filesize
312KB

Download
memory/1112-1-0x0000000074AD0000-0x00000000751BE000-memory.dmp

Filesize
6.9MB

Download
memory/1356-17-0x00000000026D0000-0x00000000026E6000-memory.dmp

Filesize
88KB

Download
memory/1968-44-0x0000000000060000-0x000000000006C000-memory.dmp

Filesize
48KB

Download
memory/1968-43-0x0000000000070000-0x0000000000077000-memory.dmp

Filesize
28KB

Download
memory/1968-45-0x0000000000060000-0x000000000006C000-memory.dmp

Filesize
48KB

Download
memory/2736-29-0x0000000000110000-0x000000000017B000-memory.dmp

Filesize
428KB

Download
memory/2736-28-0x00000000001F0000-0x0000000000265000-memory.dmp

Filesize
468KB

Download
memory/2736-42-0x0000000000110000-0x000000000017B000-memory.dmp

Filesize
428KB

Download
memory/2748-18-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2748-16-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2748-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2748-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2748-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2748-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download