f66eb73df3cd0229cc1dd1ddb8dab304f40c353c7e0b0cfeb87c30cf247c00d0

Analysis

max time kernel
155s
max time network
159s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
30-10-2022 19:04

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General

Target

f66eb73df3cd0229cc1dd1ddb8dab304f40c353c7e0b0cfeb87c30cf247c00d0.exe
Size

297KB
MD5

8314d07af946d4ba26cc7d78c4060250
SHA1

9587793d8298b2f68741adb54ff26094decba006
SHA256

f66eb73df3cd0229cc1dd1ddb8dab304f40c353c7e0b0cfeb87c30cf247c00d0
SHA512

352e89ff576091c2a111ceadce0a5fd499118ee5589866fd49b881c93ec887493d0d4b633ffc88b7bd73218928fcdcaf99c70e29a11ee7c3a9af4b8a39c3dd83
SSDEEP

3072:ypx9OyYbAhhCIIY5UYFmyhL4HqqbqBX68fhgVSqqIVhKmg1DAXq33gdbw536cWP8:yLAyVhhGHuL4KTBXv1HmaA4+Moc+wP

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
968	irebl.exe

Deletes itself 1 IoCs

pid	Process
820	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
1672	f66eb73df3cd0229cc1dd1ddb8dab304f40c353c7e0b0cfeb87c30cf247c00d0.exe
1672	f66eb73df3cd0229cc1dd1ddb8dab304f40c353c7e0b0cfeb87c30cf247c00d0.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run	irebl.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\Irebl = "C:\\Users\\Admin\\AppData\\Roaming\\Koaxz\\irebl.exe"	irebl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1672 set thread context of 820	1672	f66eb73df3cd0229cc1dd1ddb8dab304f40c353c7e0b0cfeb87c30cf247c00d0.exe	28

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
968	irebl.exe
968	irebl.exe
968	irebl.exe
968	irebl.exe
968	irebl.exe
968	irebl.exe
968	irebl.exe
968	irebl.exe
968	irebl.exe
968	irebl.exe
968	irebl.exe
968	irebl.exe
968	irebl.exe
968	irebl.exe
968	irebl.exe
968	irebl.exe
968	irebl.exe
968	irebl.exe
968	irebl.exe
968	irebl.exe
968	irebl.exe
968	irebl.exe
968	irebl.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1672 wrote to memory of 968	1672	f66eb73df3cd0229cc1dd1ddb8dab304f40c353c7e0b0cfeb87c30cf247c00d0.exe	27
PID 1672 wrote to memory of 968	1672	f66eb73df3cd0229cc1dd1ddb8dab304f40c353c7e0b0cfeb87c30cf247c00d0.exe	27
PID 1672 wrote to memory of 968	1672	f66eb73df3cd0229cc1dd1ddb8dab304f40c353c7e0b0cfeb87c30cf247c00d0.exe	27
PID 1672 wrote to memory of 968	1672	f66eb73df3cd0229cc1dd1ddb8dab304f40c353c7e0b0cfeb87c30cf247c00d0.exe	27
PID 968 wrote to memory of 1132	968	irebl.exe	16
PID 968 wrote to memory of 1132	968	irebl.exe	16
PID 968 wrote to memory of 1132	968	irebl.exe	16
PID 968 wrote to memory of 1132	968	irebl.exe	16
PID 968 wrote to memory of 1132	968	irebl.exe	16
PID 968 wrote to memory of 1224	968	irebl.exe	15
PID 968 wrote to memory of 1224	968	irebl.exe	15
PID 968 wrote to memory of 1224	968	irebl.exe	15
PID 968 wrote to memory of 1224	968	irebl.exe	15
PID 968 wrote to memory of 1224	968	irebl.exe	15
PID 968 wrote to memory of 1260	968	irebl.exe	14
PID 968 wrote to memory of 1260	968	irebl.exe	14
PID 968 wrote to memory of 1260	968	irebl.exe	14
PID 968 wrote to memory of 1260	968	irebl.exe	14
PID 968 wrote to memory of 1260	968	irebl.exe	14
PID 968 wrote to memory of 1672	968	irebl.exe	18
PID 968 wrote to memory of 1672	968	irebl.exe	18
PID 968 wrote to memory of 1672	968	irebl.exe	18
PID 968 wrote to memory of 1672	968	irebl.exe	18
PID 968 wrote to memory of 1672	968	irebl.exe	18
PID 1672 wrote to memory of 820	1672	f66eb73df3cd0229cc1dd1ddb8dab304f40c353c7e0b0cfeb87c30cf247c00d0.exe	28
PID 1672 wrote to memory of 820	1672	f66eb73df3cd0229cc1dd1ddb8dab304f40c353c7e0b0cfeb87c30cf247c00d0.exe	28
PID 1672 wrote to memory of 820	1672	f66eb73df3cd0229cc1dd1ddb8dab304f40c353c7e0b0cfeb87c30cf247c00d0.exe	28
PID 1672 wrote to memory of 820	1672	f66eb73df3cd0229cc1dd1ddb8dab304f40c353c7e0b0cfeb87c30cf247c00d0.exe	28
PID 1672 wrote to memory of 820	1672	f66eb73df3cd0229cc1dd1ddb8dab304f40c353c7e0b0cfeb87c30cf247c00d0.exe	28
PID 1672 wrote to memory of 820	1672	f66eb73df3cd0229cc1dd1ddb8dab304f40c353c7e0b0cfeb87c30cf247c00d0.exe	28
PID 1672 wrote to memory of 820	1672	f66eb73df3cd0229cc1dd1ddb8dab304f40c353c7e0b0cfeb87c30cf247c00d0.exe	28
PID 1672 wrote to memory of 820	1672	f66eb73df3cd0229cc1dd1ddb8dab304f40c353c7e0b0cfeb87c30cf247c00d0.exe	28
PID 1672 wrote to memory of 820	1672	f66eb73df3cd0229cc1dd1ddb8dab304f40c353c7e0b0cfeb87c30cf247c00d0.exe	28

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1260
- C:\Users\Admin\AppData\Local\Temp\f66eb73df3cd0229cc1dd1ddb8dab304f40c353c7e0b0cfeb87c30cf247c00d0.exe
  "C:\Users\Admin\AppData\Local\Temp\f66eb73df3cd0229cc1dd1ddb8dab304f40c353c7e0b0cfeb87c30cf247c00d0.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1672
- - C:\Users\Admin\AppData\Roaming\Koaxz\irebl.exe
    "C:\Users\Admin\AppData\Roaming\Koaxz\irebl.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:968
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\TUI4952.bat"
    3⤵
    - Deletes itself
    PID:820

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1224

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1132

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:\Users\Admin\AppData\Local\Temp\TUI4952.bat

Filesize
303B

MD5
528775241519c6704e38a7fa40e68847

SHA1
26a0cafbc3aded6162fbdb5e11a2b0cbf1f3e233

SHA256
07d3f7148118f6f510e6739ad0d7d3d3cfc4b734da319a03750e38ca1104fbe6

SHA512
bcb2b9b1fdbc2906eb2959d4527faf34d507b8cb78b7720a8d226e5b8e89b55924d2c7f8ad322f10714fd179d7550720e89a35ecc376ea3f2b9bccd122ed7853

Download Submit
C:\Users\Admin\AppData\Roaming\Koaxz\irebl.exe

Filesize
297KB

MD5
fe0804bdce1d5590cfcdfea9b8804c4f

SHA1
628bebc145d76c55071631210cb704c4afbae065

SHA256
d2b2885eba4fab25b42026bd6962a87dd77ce848282ac64fccb8fdade4411929

SHA512
16211edf297d7d16e68fc7d835b857cd683658b50a98fdc6aa271b788995814584dc3773c1b1da7e18c8705625fd60ce5c3f3277501835da06405be35d258d13

Download Submit
C:\Users\Admin\AppData\Roaming\Koaxz\irebl.exe

Filesize
297KB

MD5
fe0804bdce1d5590cfcdfea9b8804c4f

SHA1
628bebc145d76c55071631210cb704c4afbae065

SHA256
d2b2885eba4fab25b42026bd6962a87dd77ce848282ac64fccb8fdade4411929

SHA512
16211edf297d7d16e68fc7d835b857cd683658b50a98fdc6aa271b788995814584dc3773c1b1da7e18c8705625fd60ce5c3f3277501835da06405be35d258d13

Download Submit
\Users\Admin\AppData\Roaming\Koaxz\irebl.exe

Filesize
297KB

MD5
fe0804bdce1d5590cfcdfea9b8804c4f

SHA1
628bebc145d76c55071631210cb704c4afbae065

SHA256
d2b2885eba4fab25b42026bd6962a87dd77ce848282ac64fccb8fdade4411929

SHA512
16211edf297d7d16e68fc7d835b857cd683658b50a98fdc6aa271b788995814584dc3773c1b1da7e18c8705625fd60ce5c3f3277501835da06405be35d258d13

Download Submit
\Users\Admin\AppData\Roaming\Koaxz\irebl.exe

Filesize
297KB

MD5
fe0804bdce1d5590cfcdfea9b8804c4f

SHA1
628bebc145d76c55071631210cb704c4afbae065

SHA256
d2b2885eba4fab25b42026bd6962a87dd77ce848282ac64fccb8fdade4411929

SHA512
16211edf297d7d16e68fc7d835b857cd683658b50a98fdc6aa271b788995814584dc3773c1b1da7e18c8705625fd60ce5c3f3277501835da06405be35d258d13

Download Submit
memory/820-112-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/820-109-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/820-114-0x0000000000050000-0x0000000000098000-memory.dmp

Filesize
288KB

Download
memory/820-101-0x0000000000050000-0x0000000000098000-memory.dmp

Filesize
288KB

Download
memory/820-111-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/820-98-0x0000000000050000-0x0000000000098000-memory.dmp

Filesize
288KB

Download
memory/820-110-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/820-100-0x0000000000050000-0x0000000000098000-memory.dmp

Filesize
288KB

Download
memory/820-108-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/820-107-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/820-106-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/820-103-0x000000000006CA70-mapping.dmp

Download
memory/820-102-0x0000000000050000-0x0000000000098000-memory.dmp

Filesize
288KB

Download
memory/968-59-0x0000000000000000-mapping.dmp

Download
memory/968-63-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1132-70-0x0000000000330000-0x0000000000378000-memory.dmp

Filesize
288KB

Download
memory/1132-65-0x0000000000330000-0x0000000000378000-memory.dmp

Filesize
288KB

Download
memory/1132-67-0x0000000000330000-0x0000000000378000-memory.dmp

Filesize
288KB

Download
memory/1132-68-0x0000000000330000-0x0000000000378000-memory.dmp

Filesize
288KB

Download
memory/1132-69-0x0000000000330000-0x0000000000378000-memory.dmp

Filesize
288KB

Download
memory/1224-76-0x0000000001C80000-0x0000000001CC8000-memory.dmp

Filesize
288KB

Download
memory/1224-73-0x0000000001C80000-0x0000000001CC8000-memory.dmp

Filesize
288KB

Download
memory/1224-74-0x0000000001C80000-0x0000000001CC8000-memory.dmp

Filesize
288KB

Download
memory/1224-75-0x0000000001C80000-0x0000000001CC8000-memory.dmp

Filesize
288KB

Download
memory/1260-80-0x00000000029F0000-0x0000000002A38000-memory.dmp

Filesize
288KB

Download
memory/1260-82-0x00000000029F0000-0x0000000002A38000-memory.dmp

Filesize
288KB

Download
memory/1260-79-0x00000000029F0000-0x0000000002A38000-memory.dmp

Filesize
288KB

Download
memory/1260-81-0x00000000029F0000-0x0000000002A38000-memory.dmp

Filesize
288KB

Download
memory/1672-105-0x0000000001E40000-0x0000000001E88000-memory.dmp

Filesize
288KB

Download
memory/1672-89-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1672-94-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1672-92-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1672-90-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1672-93-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1672-91-0x0000000001E40000-0x0000000001E8F000-memory.dmp

Filesize
316KB

Download
memory/1672-95-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1672-88-0x0000000001E40000-0x0000000001E88000-memory.dmp

Filesize
288KB

Download
memory/1672-54-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

Filesize
8KB

Download
memory/1672-87-0x0000000001E40000-0x0000000001E88000-memory.dmp

Filesize
288KB

Download
memory/1672-86-0x0000000001E40000-0x0000000001E88000-memory.dmp

Filesize
288KB

Download
memory/1672-85-0x0000000001E40000-0x0000000001E88000-memory.dmp

Filesize
288KB

Download
memory/1672-55-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1672-56-0x0000000000401000-0x0000000000441000-memory.dmp

Filesize
256KB

Download