nymaim | 8fd107d03db9b74e054b22acdeebc5977a8fdc7f66e26f4a6364e9c590f8f2d3

Analysis

max time kernel
94s
max time network
115s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
16/11/2022, 16:18

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General

Target
file.exe
Size 1.9MB
Sample221116-trx78aca55
SHA256 8fd107d03db9b74e054b22acdeebc5977a8fdc7f66e26f4a6364e9c590f8f2d3
MD5 300fac002505dbfc8dfc745c53c17586
SHA1 bc6b8c511282a15288e647f8655752e2fd1af7ce
SHA512 44add7334066bec7f7200700a811386a9b3653848d02c875a14572163b7c95abb855d5ad66e3269545dc86cd4e8eed6d8f26e986e305865559ee72aaa681a3f9
SSDEEP 49152:q2dFhTgzAe1N+rDclRMaKAITVTWVogLhwCCrlFgyHfRx7Pq2:rnJgzdDID0lIhYTCrlPPD
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nymaim discovery trojan

Malware Config

Extracted

Family

nymaim

45.139.105.171
85.31.46.167

Signatures

NyMaim
NyMaim is a malware with various capabilities written in C++ and first seen in 2013.
trojan nymaim

Executes dropped EXE 3 IoCs

pid	Process
3112	is-QGIE1.tmp
2488	gnsearcher81.exe
2632	SwcLl6.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Control Panel\International\Geo\Nation	gnsearcher81.exe

Loads dropped DLL 1 IoCs

pid	Process
3112	is-QGIE1.tmp

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 12 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\gnSearcher\unins000.dat	is-QGIE1.tmp
File created	C:\Program Files (x86)\gnSearcher\is-R66N1.tmp	is-QGIE1.tmp
File created	C:\Program Files (x86)\gnSearcher\is-AAG75.tmp	is-QGIE1.tmp
File opened for modification	C:\Program Files (x86)\gnSearcher\unins000.dat	is-QGIE1.tmp
File opened for modification	C:\Program Files (x86)\gnSearcher\gnsearcher81.exe	is-QGIE1.tmp
File created	C:\Program Files (x86)\gnSearcher\is-FOKD6.tmp	is-QGIE1.tmp
File created	C:\Program Files (x86)\gnSearcher\is-I7RDL.tmp	is-QGIE1.tmp
File created	C:\Program Files (x86)\gnSearcher\is-G9IK7.tmp	is-QGIE1.tmp
File created	C:\Program Files (x86)\gnSearcher\is-0NH6A.tmp	is-QGIE1.tmp
File created	C:\Program Files (x86)\gnSearcher\is-Q56E2.tmp	is-QGIE1.tmp
File created	C:\Program Files (x86)\gnSearcher\is-64UF5.tmp	is-QGIE1.tmp
File created	C:\Program Files (x86)\gnSearcher\is-FICVU.tmp	is-QGIE1.tmp

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

pid	Process
1704	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2488	gnsearcher81.exe
2488	gnsearcher81.exe
2488	gnsearcher81.exe
2488	gnsearcher81.exe
2488	gnsearcher81.exe
2488	gnsearcher81.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1704	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 3112	2124	file.exe	82
PID 2124 wrote to memory of 3112	2124	file.exe	82
PID 2124 wrote to memory of 3112	2124	file.exe	82
PID 3112 wrote to memory of 2488	3112	is-QGIE1.tmp	83
PID 3112 wrote to memory of 2488	3112	is-QGIE1.tmp	83
PID 3112 wrote to memory of 2488	3112	is-QGIE1.tmp	83
PID 2488 wrote to memory of 2632	2488	gnsearcher81.exe	84
PID 2488 wrote to memory of 2632	2488	gnsearcher81.exe	84
PID 2488 wrote to memory of 2632	2488	gnsearcher81.exe	84
PID 2488 wrote to memory of 2440	2488	gnsearcher81.exe	87
PID 2488 wrote to memory of 2440	2488	gnsearcher81.exe	87
PID 2488 wrote to memory of 2440	2488	gnsearcher81.exe	87
PID 2440 wrote to memory of 1704	2440	cmd.exe	89
PID 2440 wrote to memory of 1704	2440	cmd.exe	89
PID 2440 wrote to memory of 1704	2440	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Users\Admin\AppData\Local\Temp\is-4CPF1.tmp\is-QGIE1.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-4CPF1.tmp\is-QGIE1.tmp" /SL4 $8005E "C:\Users\Admin\AppData\Local\Temp\file.exe" 1761498 54784
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:3112
- - C:\Program Files (x86)\gnSearcher\gnsearcher81.exe
    "C:\Program Files (x86)\gnSearcher\gnsearcher81.exe"
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2488
  - - C:\Users\Admin\AppData\Roaming\{6fe6a3c0-6208-11ed-b8c9-806e6f6e6963}\SwcLl6.exe
      4⤵
      Executes dropped EXE
      PID:2632
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "gnsearcher81.exe" /f & erase "C:\Program Files (x86)\gnSearcher\gnsearcher81.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2440
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "gnsearcher81.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1704

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

gnsearcher81.exe

Path C:\Program Files (x86)\gnSearcher\gnsearcher81.exe
Size 2.6MB
SHA256 fde72d2cbc92b5188e995d7e2a11bc6453672a492f6b083d53dca1793a8f2504
MD5 232d5893ffffecc9e812ecf27482b564
SHA1 c5270d66718de900752722f4d8730edf0e113760
SHA512 c7ccf8e200e9f30ee86d417ba2d7be7ee34deefe8449987d422fc12bf9a044c1348ec65329e2e44c11fa1b9e7d52ebcf789dba44874f61340e7960521b4c33ad
SSDEEP 49152:JHnLrWaSEMHETLAVSb1+/zSCvBUMMS5dhQLt0ioSMNbc05U8Bps4qa2:RL5KnkbuOABUMMS5dhQ6iozbc05U8BpE
MD5 SHA1 SHA512 SSDEEP

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gnsearcher81.exe

Path C:\Program Files (x86)\gnSearcher\gnsearcher81.exe
Size 2.6MB
SHA256 fde72d2cbc92b5188e995d7e2a11bc6453672a492f6b083d53dca1793a8f2504
MD5 232d5893ffffecc9e812ecf27482b564
SHA1 c5270d66718de900752722f4d8730edf0e113760
SHA512 c7ccf8e200e9f30ee86d417ba2d7be7ee34deefe8449987d422fc12bf9a044c1348ec65329e2e44c11fa1b9e7d52ebcf789dba44874f61340e7960521b4c33ad
SSDEEP 49152:JHnLrWaSEMHETLAVSb1+/zSCvBUMMS5dhQLt0ioSMNbc05U8Bps4qa2:RL5KnkbuOABUMMS5dhQ6iozbc05U8BpE
MD5 SHA1 SHA512 SSDEEP

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is-QGIE1.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-4CPF1.tmp\is-QGIE1.tmp
Size 659KB
SHA256 fe0505386751f6c7a49d4b3594cc99c8936a9906e49c595934e586f0b9a9e409
MD5 34a3efb47055787f7a4537fb08fb93ec
SHA1 7396195a1bc60f31bb90b5c8abf4b4ce95ec06f9
SHA512 055b18c604aa583f0150f39e564438e15cd07dff308212a2c508978e2347224e2c7979f5066fb4f4e9073d5a76ee845d659214cd5f8669ce808e74d0078520ff
SSDEEP 12288:1kxzRCUn4rP/37YzHXA6/YUKsGjQNw4qpRRpDWowphjxgA:SFRCUn4rP/37YzHXA6QJsoPtIpxxgA
MD5 SHA1 SHA512 SSDEEP

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is-QGIE1.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-4CPF1.tmp\is-QGIE1.tmp
Size 659KB
SHA256 fe0505386751f6c7a49d4b3594cc99c8936a9906e49c595934e586f0b9a9e409
MD5 34a3efb47055787f7a4537fb08fb93ec
SHA1 7396195a1bc60f31bb90b5c8abf4b4ce95ec06f9
SHA512 055b18c604aa583f0150f39e564438e15cd07dff308212a2c508978e2347224e2c7979f5066fb4f4e9073d5a76ee845d659214cd5f8669ce808e74d0078520ff
SSDEEP 12288:1kxzRCUn4rP/37YzHXA6/YUKsGjQNw4qpRRpDWowphjxgA:SFRCUn4rP/37YzHXA6QJsoPtIpxxgA
MD5 SHA1 SHA512 SSDEEP

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_iscrypt.dll

Path C:\Users\Admin\AppData\Local\Temp\is-DSM9F.tmp\_isetup\_iscrypt.dll
Size 2KB
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
MD5 SHA1 SHA512

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SwcLl6.exe

Path C:\Users\Admin\AppData\Roaming\{6fe6a3c0-6208-11ed-b8c9-806e6f6e6963}\SwcLl6.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

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SwcLl6.exe

Path C:\Users\Admin\AppData\Roaming\{6fe6a3c0-6208-11ed-b8c9-806e6f6e6963}\SwcLl6.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

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memory/2124-156-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/2124-137-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/2124-132-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/2488-143-0x0000000000400000-0x00000000014A4000-memory.dmp

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memory/2488-144-0x0000000000400000-0x00000000014A4000-memory.dmp

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memory/2488-148-0x0000000010000000-0x000000001001B000-memory.dmp

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memory/2488-152-0x0000000000400000-0x00000000014A4000-memory.dmp

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memory/2488-142-0x0000000000400000-0x00000000014A4000-memory.dmp

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memory/2488-155-0x0000000000400000-0x00000000014A4000-memory.dmp

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