831f2c4f9ffdcd8a730f72abd1b8a2a716eded13ef33876ed6f704d09027033d

General

Target

emsO.exe
Size

884KB
MD5

c47a7fef0ab6068c68877022965dc13d
SHA1

468d6112130fc9b58092db88611d2ad53cb33a06
SHA256

831f2c4f9ffdcd8a730f72abd1b8a2a716eded13ef33876ed6f704d09027033d
SHA512

f2e7d82f30b359b7d55f99c1fcd5a5680376e3c26b9b10b74f5ee6789480d7f4ab3586d62a85d446db9ba019528b77c4069765ea258c3f2df742f974c07a6d03
SSDEEP

12288:fChkTeH81jJUS5ZsNXTkuF/bbXEQoR1aWX9MbGU6qG/ux5VWYcvyE1tHiwSQYiMo:I8MS5ETzbb6trU6x/ux5VWYcj3

Score

5^/10

Malware Config

Signatures

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 5080 set thread context of 1920	5080	emsO.exe	95
PID 1920 set thread context of 3364	1920	emsO.exe	57
PID 1920 set thread context of 2908	1920	emsO.exe	100

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	unlodctr.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
5080	emsO.exe
5080	emsO.exe
1920	emsO.exe
1920	emsO.exe
1920	emsO.exe
1920	emsO.exe
1920	emsO.exe
1920	emsO.exe
1920	emsO.exe
1920	emsO.exe
1920	emsO.exe
1920	emsO.exe
1920	emsO.exe
1920	emsO.exe
1920	emsO.exe
1920	emsO.exe
1920	emsO.exe
1920	emsO.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
1920	emsO.exe
3364	Explorer.EXE
3364	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5080	emsO.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 5080 wrote to memory of 1920	5080	emsO.exe	95
PID 5080 wrote to memory of 1920	5080	emsO.exe	95
PID 5080 wrote to memory of 1920	5080	emsO.exe	95
PID 5080 wrote to memory of 1920	5080	emsO.exe	95
PID 5080 wrote to memory of 1920	5080	emsO.exe	95
PID 5080 wrote to memory of 1920	5080	emsO.exe	95
PID 3364 wrote to memory of 2908	3364	Explorer.EXE	100
PID 3364 wrote to memory of 2908	3364	Explorer.EXE	100
PID 3364 wrote to memory of 2908	3364	Explorer.EXE	100

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3364
- C:\Users\Admin\AppData\Local\Temp\emsO.exe
  "C:\Users\Admin\AppData\Local\Temp\emsO.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5080
- - C:\Users\Admin\AppData\Local\Temp\emsO.exe
    "C:\Users\Admin\AppData\Local\Temp\emsO.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    PID:1920
- C:\Windows\SysWOW64\unlodctr.exe
  "C:\Windows\SysWOW64\unlodctr.exe"
  2⤵
  - Modifies Internet Explorer settings
  PID:2908
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:628

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4080 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8
1⤵
PID:3952

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1920-18-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1920-22-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1920-23-0x0000000004CC0000-0x0000000004CE3000-memory.dmp

Filesize
140KB

Download
memory/1920-12-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1920-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1920-19-0x0000000004CC0000-0x0000000004CE3000-memory.dmp

Filesize
140KB

Download
memory/1920-17-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1920-16-0x00000000014D0000-0x000000000181A000-memory.dmp

Filesize
3.3MB

Download
memory/2908-20-0x0000000000AC0000-0x0000000000AFF000-memory.dmp

Filesize
252KB

Download
memory/2908-21-0x0000000000AC0000-0x0000000000AFF000-memory.dmp

Filesize
252KB

Download
memory/2908-26-0x0000000000AC0000-0x0000000000AFF000-memory.dmp

Filesize
252KB

Download
memory/2908-24-0x0000000000AC0000-0x0000000000AFF000-memory.dmp

Filesize
252KB

Download
memory/3364-25-0x0000000007890000-0x000000000796E000-memory.dmp

Filesize
888KB

Download
memory/5080-5-0x0000000007770000-0x000000000777A000-memory.dmp

Filesize
40KB

Download
memory/5080-0-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

Filesize
4KB

Download
memory/5080-7-0x00000000090E0000-0x0000000009100000-memory.dmp

Filesize
128KB

Download
memory/5080-6-0x0000000007880000-0x000000000791C000-memory.dmp

Filesize
624KB

Download
memory/5080-9-0x0000000009120000-0x0000000009136000-memory.dmp

Filesize
88KB

Download
memory/5080-4-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/5080-3-0x00000000075B0000-0x0000000007642000-memory.dmp

Filesize
584KB

Download
memory/5080-8-0x0000000009110000-0x0000000009120000-memory.dmp

Filesize
64KB

Download
memory/5080-2-0x0000000007AC0000-0x0000000008064000-memory.dmp

Filesize
5.6MB

Download
memory/5080-14-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/5080-1-0x0000000000620000-0x0000000000700000-memory.dmp

Filesize
896KB

Download
memory/5080-11-0x00000000094B0000-0x000000000953A000-memory.dmp

Filesize
552KB

Download
memory/5080-10-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

Filesize
4KB

Download

Analysis

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